Impact ledger

iShares 20+ Year Treasury Bond ETF (TLT): the developments shaping its investment case

Follow the evidence affecting iShares 20+ Year Treasury Bond ETF's financing assumptions. Review the key developments below. Continue in Market Ontology to test your assumptions, examine related opportunities, and save the investment case you want to track.

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Material developments

2026-09-15

10-Year US Treasury yield reaches 5.00% on persistent inflation and oil pressures

Channel: Direct inverse relationship with bond yields; higher yields mean lower bond prices.

Bearish· intraday

2026-09-28 · 2 reports

10Y Treasury yield reaches 5.23% following Fed 25bp rate hike and hawkish guidance

Channel: Direct inverse relationship between bond yields and bond prices. Higher yields mean lower bond prices.

Bearish· intraday

2026-09-28

10-Year Treasury Yield Hits 5.23% as Hawkish Fed Signals Higher-for-Longer Path

Channel: Direct inverse relationship between bond yields and bond prices. Higher yields mean lower bond prices.

Bearish· intraday

Evidence affecting valuation assumptions

Each entry names the assumption the evidence touches and how the evidence reads. Direction describes the business mechanism, not a stock-price conclusion.

Date	Assumption	Direction	Interpretation
2026-08-21	wacc	Bearish	Treasury repurchases targeting long-dated securities effectively cap the term premium and lower discount rates.

Event impact log

44 events mapped to TLT since 2026-08-13. Evidence through 2026-09-28.

Date	Event	Channel	Direction	Horizon	Impact
2026-09-28	10Y Treasury yield reaches 5.23% following Fed 25bp rate hike and hawkish guidance	Direct inverse relationship between bond yields and bond prices. Higher yields mean lower bond prices.	Bearish	intraday	0.90
2026-09-28	10-Year Treasury Yield Hits 5.23% as Hawkish Fed Signals Higher-for-Longer Path	Direct inverse relationship between bond yields and bond prices. Higher yields mean lower bond prices.	Bearish	intraday	0.90
2026-09-28	Fed 25bp Rate Increase Reprices Floating-Rate Private Credit Yields	Inverse relationship between interest rates and bond prices; higher rates decrease the value of existing long-duration bonds.	Bearish	intraday	0.90
2026-09-28	US National Debt Tops $40 Trillion as Annual Interest Expense Hits $1.25 Trillion	Sustained high levels of government debt and increasing interest expenses necessitate continued large-scale Treasury issuance. This increased supply, coupled with potential concerns about fiscal sustainability, can put upward pressure on long-term yields, negatively impacting the price of existing l	Bearish	1-3m	0.80
2026-09-28	US National Debt Surpasses $40 Trillion as Annual Interest Expense Reaches $1.25 Trillion	Increased Treasury supply and higher interest expense suggest persistent upward pressure on long-term bond yields, which negatively impacts bond prices.	Bearish	1-3m	0.80
2026-09-28	10-Year Treasury yield reaches 5.23% following 25bp Fed hike and hawkish guidance	Direct inverse relationship between bond yields and bond prices. Higher yields mean lower prices for existing fixed-income securities.	Bearish	intraday	0.90
2026-09-28	US national debt crosses $40T as annual interest expense reaches $1.25T	Increased Treasury supply and higher interest expense could put upward pressure on long-term yields, negatively impacting bond prices.	Bearish	1-3m	0.80
2026-09-25	30-Year Treasury Yield Hits 2004 Highs as Equity Indices Extend Two-Day Pullback	Direct inverse relationship between bond yields and bond prices. A surge in 30-year Treasury yields directly translates to a decrease in the value of long-duration bond ETFs.	Bearish	intraday	0.90
2026-09-25	Long-End Treasury Yields Reach 2004 Highs as Equity Indices Decline	As an ETF tracking long-duration U.S. Treasury bonds, rising long-end yields directly cause a decline in the underlying bond prices, and thus the ETF's net asset value.	Bearish	intraday	0.90
2026-09-22	LGI Homes Launches Rate Buy-Down Incentives Across Move-In Ready Inventory	Indirectly, the event highlights persistent high interest rates as a drag on housing, which could reinforce expectations for the Federal Reserve's monetary policy.	watch	1-5d	0.20
2026-09-22	Huntington Bancshares Trims Loan Growth Outlook to 6% and Upsizes 2027 Buyback	Flight to safety and potential implications for future interest rate policy.	Bullish	1-3m	0.40
2026-09-22	LGI Homes Launches National Rate-Buydown Campaign to Move Housing Inventory	Indirect market signal. The need for rate buydowns suggests that current mortgage rates are a significant impediment to housing demand. If this trend signals broader economic weakness or a potential peak in interest rates, it could indirectly influence bond market sentiment.	mixed	1-5d	0.40
2026-09-19	Annaly Slides 8.5% Over 30 Days as Agency Mortgage Spreads Challenge REITs	Indirectly affected by broader fixed income market sentiment and interest rate expectations. Widening MBS spreads can sometimes correlate with broader bond market volatility.	mixed	1-3m	0.60
2026-09-18	10-Year Treasury yield approaches 5% as cash shifts into short-duration debt ETFs	Rising long-term Treasury yields directly decrease the price of existing long-duration bonds. Investor reallocation away from long-duration assets.	Bearish	1-3m	0.80
2026-09-16	10-Year Treasury Yield Surges to 5.041%, Highest Level Since July 2007	Direct inverse relationship between bond yields and bond prices.	Bearish	intraday	0.90
2026-09-15	10-Year US Treasury yield reaches 5.00% on persistent inflation and oil pressures	Direct inverse relationship with bond yields; higher yields mean lower bond prices.	Bearish	intraday	0.90
2026-09-15	10-Year Treasury Yield Hits 5.00% for First Time Since 2007	Direct inverse relationship between bond yields and bond prices.	Bearish	intraday	0.90
2026-09-12	Brent and WTI Break $100 as Surging Energy Prices Drive Treasury Yields Higher	Higher Treasury yields directly lead to lower bond prices, as bond prices and yields move inversely.	Bearish	intraday	0.90
2026-09-10	Bitcoin basis yields fall below Treasuries as institutional BTCfi TVL drops 74%	Treasury yields becoming more attractive relative to crypto yields, potentially drawing capital from crypto into traditional fixed income.	Bullish	1-3m	0.40
2026-09-09	Fed Rate Hike Odds Cross 60% Threshold Pressuring Risk Assets	Direct inverse relationship between bond prices and yields. Increased rate hike odds lead to higher expected future rates, causing current bond prices to fall.	Bearish	intraday	0.90
2026-09-06	S&P 500 Shiller CAPE Ratio Reaches 41, Matching Historic Valuation Peaks	Potential flight to safety from equities to bonds if a market correction occurs, offset by potential for higher interest rates if inflation concerns drive tariffs/energy costs.	mixed	3-12m	0.60
2026-09-06	Fed Chair Kevin Warsh signals stricter approach; 'sufficient speed' quote	Direct impact of rising short-end yields and expectations of higher future rates, leading to lower bond prices.	Bearish	intraday	0.90
2026-09-06	Nvidia Q2 FY2027 revenue doubled to $96.2B; free cash flow $69.9B	Strong equity performance and increased AI-driven capex expectations may lead to higher inflation expectations or reduced demand for safe-haven assets, potentially pushing bond yields higher.	Bearish	1-5d	0.60
2026-09-06	S&P 500 Shiller CAPE Ratio Reaches 41 Matching Rare Historical Valuation Extremes	Potential flight to safety if equity markets correct, but also sensitivity to interest rate shocks mentioned in the summary.	mixed	3-12m	0.50
2026-09-04	Waller backs holding rates; Bitcoin jumps 5.5% to $81,491.82	Expectations of stable or lower interest rates reduce bond yield, increasing bond prices.	Bullish	1-5d	0.60
2026-09-03	Cooler ADP Jobs Print Moderates Rate Expectations, Lifting Precious Metals and Duration	Lower interest rate expectations lead to higher bond prices, especially for long-duration bonds, as their future cash flows are discounted at a lower rate.	Bullish	1-3m	0.80
2026-08-29	Warsh at Jackson Hole: 2026 cuts unlikely; hikes remain possible	Increased interest rate expectations, leading to higher bond yields and lower bond prices.	Bearish	1-5d	0.90
2026-08-29	Warsh Signals 2026 Rate Hikes Possible as Fed Warns Inflation Progress Stalled	Expectations of higher future interest rates and potential rate hikes directly lead to lower bond prices (and thus lower ETF values) as yields rise to reflect the new policy outlook. The 'higher for longer' narrative is detrimental to long-duration bonds.	Bearish	1-3m	0.90
2026-08-27	Treasury Expands Long-Dated Bond Buybacks to $4B to Calm Yields	Direct demand for long-dated bonds, reducing duration supply and potentially lowering yields.	Bullish	1-5d	0.80
2026-08-26	Treasury Doubles Bond Buyback to $4B as 30-Year Yield Hits 5.23% Amid $40T Debt	Direct demand for long-dated Treasuries, yield curve management.	Bullish	1-5d	0.80
2026-08-26	30-Year Treasury Yield Hits 5.23%, Surpassing Blue-Chip Dividends	Direct inverse relationship between bond yields and bond prices. As 30-year Treasury yields rise, the market value of existing long-duration bonds (which TLT holds) falls.	Bearish	intraday	0.90
2026-08-26	30-Year Treasury Yield Hits 5.23% Amid Debt and Inflation Concerns	Direct: Inverse relationship between bond yields and bond prices. Higher yields mean lower bond prices.	Bearish	intraday	0.90
2026-08-24	US 10-Year Yield Hits 4.65% as Bond Market Reprices Duration Risk	Direct inverse relationship between bond yields and bond prices. Higher yields mean lower bond prices.	Bearish	intraday	0.90
2026-08-23	Treasury Yields Hit Multi-Year Highs; 10Y at 4.65%	Direct inverse relationship between bond prices and yields. As yields rise, existing bond prices fall.	Bearish	intraday	0.90
2026-08-21	U.S. Treasury Doubles Long-Term Bond Buybacks to $4B Per Operation	Increased demand from the U.S. Treasury for long-term bonds directly drives up bond prices and lowers yields. As an ETF holding long-term Treasury bonds, TLT's net asset value (NAV) directly benefits from rising bond prices.	Bullish	intraday	0.90
2026-08-21	US Treasury Doubles Long-Term Bond Buybacks to $4B Per Operation	Direct impact on long-term bond prices due to increased demand from Treasury buybacks. This ETF holds long-term US Treasury bonds.	Bullish	1-5d	0.80
2026-08-20	Fed Chair Warsh Rejects Soft Inflation Targets, Commits to Strict 2%	Increased expectations for higher-for-longer interest rates and reduced likelihood of future rate cuts will directly depress long-duration bond prices.	Bearish	1-3m	0.80
2026-08-20	Treasury Doubles Long-Term Bond Buybacks to $4B; Gold Miners Rally	The Treasury's buyback of long-term bonds directly increases demand for these securities, which typically leads to higher bond prices and consequently lower yields. TLT, an ETF holding long-dated Treasury bonds, would directly benefit from this price appreciation.	Bullish	intraday	0.90
2026-08-20	US Treasury Doubles Long-Term Bond Buybacks to $4 Billion	Direct impact on underlying asset prices (long-term US Treasury bonds) due to increased demand from Treasury buybacks.	Bullish	1-5d	0.90
2026-08-20	Treasury Doubles Long-Term Bond Buybacks to $4 Billion	Direct demand for long-term Treasury bonds from the Treasury itself, reducing supply in the open market and pushing prices up.	Bullish	1-5d	0.80

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Research iShares 20+ Year Treasury Bond ETF · $399/mo

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iShares 20+ Year Treasury Bond ETF (TLT): the developments shaping its investment case

Material developments

2026-09-15

10-Year US Treasury yield reaches 5.00% on persistent inflation and oil pressures

Channel: Direct inverse relationship with bond yields; higher yields mean lower bond prices.

Bearish· intraday

2026-09-28 · 2 reports

10Y Treasury yield reaches 5.23% following Fed 25bp rate hike and hawkish guidance

Channel: Direct inverse relationship between bond yields and bond prices. Higher yields mean lower bond prices.

Bearish· intraday

2026-09-28

10-Year Treasury Yield Hits 5.23% as Hawkish Fed Signals Higher-for-Longer Path

Channel: Direct inverse relationship between bond yields and bond prices. Higher yields mean lower bond prices.

Bearish· intraday

Evidence affecting valuation assumptions

Each entry names the assumption the evidence touches and how the evidence reads. Direction describes the business mechanism, not a stock-price conclusion.

Date	Assumption	Direction	Interpretation
2026-08-21	wacc	Bearish	Treasury repurchases targeting long-dated securities effectively cap the term premium and lower discount rates.

Event impact log

44 events mapped to TLT since 2026-08-13. Evidence through 2026-09-28.

Date	Event	Channel	Direction	Horizon	Impact
2026-09-28	10Y Treasury yield reaches 5.23% following Fed 25bp rate hike and hawkish guidance	Direct inverse relationship between bond yields and bond prices. Higher yields mean lower bond prices.	Bearish	intraday	0.90
2026-09-28	10-Year Treasury Yield Hits 5.23% as Hawkish Fed Signals Higher-for-Longer Path	Direct inverse relationship between bond yields and bond prices. Higher yields mean lower bond prices.	Bearish	intraday	0.90
2026-09-28	Fed 25bp Rate Increase Reprices Floating-Rate Private Credit Yields	Inverse relationship between interest rates and bond prices; higher rates decrease the value of existing long-duration bonds.	Bearish	intraday	0.90
2026-09-28	US National Debt Tops $40 Trillion as Annual Interest Expense Hits $1.25 Trillion	Sustained high levels of government debt and increasing interest expenses necessitate continued large-scale Treasury issuance. This increased supply, coupled with potential concerns about fiscal sustainability, can put upward pressure on long-term yields, negatively impacting the price of existing l	Bearish	1-3m	0.80
2026-09-28	US National Debt Surpasses $40 Trillion as Annual Interest Expense Reaches $1.25 Trillion	Increased Treasury supply and higher interest expense suggest persistent upward pressure on long-term bond yields, which negatively impacts bond prices.	Bearish	1-3m	0.80
2026-09-28	10-Year Treasury yield reaches 5.23% following 25bp Fed hike and hawkish guidance	Direct inverse relationship between bond yields and bond prices. Higher yields mean lower prices for existing fixed-income securities.	Bearish	intraday	0.90
2026-09-28	US national debt crosses $40T as annual interest expense reaches $1.25T	Increased Treasury supply and higher interest expense could put upward pressure on long-term yields, negatively impacting bond prices.	Bearish	1-3m	0.80
2026-09-25	30-Year Treasury Yield Hits 2004 Highs as Equity Indices Extend Two-Day Pullback	Direct inverse relationship between bond yields and bond prices. A surge in 30-year Treasury yields directly translates to a decrease in the value of long-duration bond ETFs.	Bearish	intraday	0.90
2026-09-25	Long-End Treasury Yields Reach 2004 Highs as Equity Indices Decline	As an ETF tracking long-duration U.S. Treasury bonds, rising long-end yields directly cause a decline in the underlying bond prices, and thus the ETF's net asset value.	Bearish	intraday	0.90
2026-09-22	LGI Homes Launches Rate Buy-Down Incentives Across Move-In Ready Inventory	Indirectly, the event highlights persistent high interest rates as a drag on housing, which could reinforce expectations for the Federal Reserve's monetary policy.	watch	1-5d	0.20
2026-09-22	Huntington Bancshares Trims Loan Growth Outlook to 6% and Upsizes 2027 Buyback	Flight to safety and potential implications for future interest rate policy.	Bullish	1-3m	0.40
2026-09-22	LGI Homes Launches National Rate-Buydown Campaign to Move Housing Inventory	Indirect market signal. The need for rate buydowns suggests that current mortgage rates are a significant impediment to housing demand. If this trend signals broader economic weakness or a potential peak in interest rates, it could indirectly influence bond market sentiment.	mixed	1-5d	0.40
2026-09-19	Annaly Slides 8.5% Over 30 Days as Agency Mortgage Spreads Challenge REITs	Indirectly affected by broader fixed income market sentiment and interest rate expectations. Widening MBS spreads can sometimes correlate with broader bond market volatility.	mixed	1-3m	0.60
2026-09-18	10-Year Treasury yield approaches 5% as cash shifts into short-duration debt ETFs	Rising long-term Treasury yields directly decrease the price of existing long-duration bonds. Investor reallocation away from long-duration assets.	Bearish	1-3m	0.80
2026-09-16	10-Year Treasury Yield Surges to 5.041%, Highest Level Since July 2007	Direct inverse relationship between bond yields and bond prices.	Bearish	intraday	0.90
2026-09-15	10-Year US Treasury yield reaches 5.00% on persistent inflation and oil pressures	Direct inverse relationship with bond yields; higher yields mean lower bond prices.	Bearish	intraday	0.90
2026-09-15	10-Year Treasury Yield Hits 5.00% for First Time Since 2007	Direct inverse relationship between bond yields and bond prices.	Bearish	intraday	0.90
2026-09-12	Brent and WTI Break $100 as Surging Energy Prices Drive Treasury Yields Higher	Higher Treasury yields directly lead to lower bond prices, as bond prices and yields move inversely.	Bearish	intraday	0.90
2026-09-10	Bitcoin basis yields fall below Treasuries as institutional BTCfi TVL drops 74%	Treasury yields becoming more attractive relative to crypto yields, potentially drawing capital from crypto into traditional fixed income.	Bullish	1-3m	0.40
2026-09-09	Fed Rate Hike Odds Cross 60% Threshold Pressuring Risk Assets	Direct inverse relationship between bond prices and yields. Increased rate hike odds lead to higher expected future rates, causing current bond prices to fall.	Bearish	intraday	0.90
2026-09-06	S&P 500 Shiller CAPE Ratio Reaches 41, Matching Historic Valuation Peaks	Potential flight to safety from equities to bonds if a market correction occurs, offset by potential for higher interest rates if inflation concerns drive tariffs/energy costs.	mixed	3-12m	0.60
2026-09-06	Fed Chair Kevin Warsh signals stricter approach; 'sufficient speed' quote	Direct impact of rising short-end yields and expectations of higher future rates, leading to lower bond prices.	Bearish	intraday	0.90
2026-09-06	Nvidia Q2 FY2027 revenue doubled to $96.2B; free cash flow $69.9B	Strong equity performance and increased AI-driven capex expectations may lead to higher inflation expectations or reduced demand for safe-haven assets, potentially pushing bond yields higher.	Bearish	1-5d	0.60
2026-09-06	S&P 500 Shiller CAPE Ratio Reaches 41 Matching Rare Historical Valuation Extremes	Potential flight to safety if equity markets correct, but also sensitivity to interest rate shocks mentioned in the summary.	mixed	3-12m	0.50
2026-09-04	Waller backs holding rates; Bitcoin jumps 5.5% to $81,491.82	Expectations of stable or lower interest rates reduce bond yield, increasing bond prices.	Bullish	1-5d	0.60
2026-09-03	Cooler ADP Jobs Print Moderates Rate Expectations, Lifting Precious Metals and Duration	Lower interest rate expectations lead to higher bond prices, especially for long-duration bonds, as their future cash flows are discounted at a lower rate.	Bullish	1-3m	0.80
2026-08-29	Warsh at Jackson Hole: 2026 cuts unlikely; hikes remain possible	Increased interest rate expectations, leading to higher bond yields and lower bond prices.	Bearish	1-5d	0.90
2026-08-29	Warsh Signals 2026 Rate Hikes Possible as Fed Warns Inflation Progress Stalled	Expectations of higher future interest rates and potential rate hikes directly lead to lower bond prices (and thus lower ETF values) as yields rise to reflect the new policy outlook. The 'higher for longer' narrative is detrimental to long-duration bonds.	Bearish	1-3m	0.90
2026-08-27	Treasury Expands Long-Dated Bond Buybacks to $4B to Calm Yields	Direct demand for long-dated bonds, reducing duration supply and potentially lowering yields.	Bullish	1-5d	0.80
2026-08-26	Treasury Doubles Bond Buyback to $4B as 30-Year Yield Hits 5.23% Amid $40T Debt	Direct demand for long-dated Treasuries, yield curve management.	Bullish	1-5d	0.80
2026-08-26	30-Year Treasury Yield Hits 5.23%, Surpassing Blue-Chip Dividends	Direct inverse relationship between bond yields and bond prices. As 30-year Treasury yields rise, the market value of existing long-duration bonds (which TLT holds) falls.	Bearish	intraday	0.90
2026-08-26	30-Year Treasury Yield Hits 5.23% Amid Debt and Inflation Concerns	Direct: Inverse relationship between bond yields and bond prices. Higher yields mean lower bond prices.	Bearish	intraday	0.90
2026-08-24	US 10-Year Yield Hits 4.65% as Bond Market Reprices Duration Risk	Direct inverse relationship between bond yields and bond prices. Higher yields mean lower bond prices.	Bearish	intraday	0.90
2026-08-23	Treasury Yields Hit Multi-Year Highs; 10Y at 4.65%	Direct inverse relationship between bond prices and yields. As yields rise, existing bond prices fall.	Bearish	intraday	0.90
2026-08-21	U.S. Treasury Doubles Long-Term Bond Buybacks to $4B Per Operation	Increased demand from the U.S. Treasury for long-term bonds directly drives up bond prices and lowers yields. As an ETF holding long-term Treasury bonds, TLT's net asset value (NAV) directly benefits from rising bond prices.	Bullish	intraday	0.90
2026-08-21	US Treasury Doubles Long-Term Bond Buybacks to $4B Per Operation	Direct impact on long-term bond prices due to increased demand from Treasury buybacks. This ETF holds long-term US Treasury bonds.	Bullish	1-5d	0.80
2026-08-20	Fed Chair Warsh Rejects Soft Inflation Targets, Commits to Strict 2%	Increased expectations for higher-for-longer interest rates and reduced likelihood of future rate cuts will directly depress long-duration bond prices.	Bearish	1-3m	0.80
2026-08-20	Treasury Doubles Long-Term Bond Buybacks to $4B; Gold Miners Rally	The Treasury's buyback of long-term bonds directly increases demand for these securities, which typically leads to higher bond prices and consequently lower yields. TLT, an ETF holding long-dated Treasury bonds, would directly benefit from this price appreciation.	Bullish	intraday	0.90
2026-08-20	US Treasury Doubles Long-Term Bond Buybacks to $4 Billion	Direct impact on underlying asset prices (long-term US Treasury bonds) due to increased demand from Treasury buybacks.	Bullish	1-5d	0.90
2026-08-20	Treasury Doubles Long-Term Bond Buybacks to $4 Billion	Direct demand for long-term Treasury bonds from the Treasury itself, reducing supply in the open market and pushing prices up.	Bullish	1-5d	0.80