CONVEX

Short-Term (SHY) vs Long-Term Treasuries (TLT)

SHY (iShares 1-3 Year Treasury Bond ETF) tracks short-duration Treasuries with effective duration approximately 1.8 years; TLT (iShares 20+ Year Treasury Bond ETF) tracks long-duration with effective duration approximately 17-18 years. The duration ratio of 9-10x makes SHY-vs-TLT the most extreme duration pair available through ETFs.

ByConvex Research Desk·Edited byBen Bleier·

Also known as: 1-3Y Treasury (SHY) (ETF_SHY) · 20Y+ Treasury ETF (long bonds, treasury ETF)

Bonds & Durationdaily
1-3Y Treasury (SHY)
$82.06
7D -0.12%30D -0.70%
Updated
Bonds & Durationdaily
20Y+ Treasury ETF
$83.66
7D -1.56%30D -3.92%
Updated

Why This Comparison Matters

SHY (iShares 1-3 Year Treasury Bond ETF) tracks short-duration Treasuries with effective duration approximately 1.8 years; TLT (iShares 20+ Year Treasury Bond ETF) tracks long-duration with effective duration approximately 17-18 years. The duration ratio of 9-10x makes SHY-vs-TLT the most extreme duration pair available through ETFs. SHY yields approximately 3.85 percent (slightly above fed funds 3.50-3.75 percent reflecting short-duration term premium); TLT yields 4.49 percent. The pair is the cleanest expression of yield curve direction: rising rates compress TLT massively while leaving SHY essentially flat; falling rates produce massive TLT outperformance. The 2022 hiking cycle saw SHY essentially flat while TLT fell 50 percent peak-to-trough.

The April 2026 Configuration

SHY at approximately $83 with yield ~3.85 percent in April 2026; TLT at $87 with yield 4.49 percent. SHY/TLT ratio approximately 0.95 (SHY $83 / TLT $87). The 12-month range is 0.85-1.0. The 5-year range is 0.55-1.0 (TLT relative peak in 2020 produced ratio at 0.55).

Fed funds at 3.50-3.75 percent (paused at this level for ~4 months). SHY tracks fed-funds-like yields plus modest term premium. TLT tracks 20+ year yields including substantial term premium component.

2026 Fed expectations: 2-3 cuts to 2.75-3.25 percent by year-end. Expected impact: SHY yields fall toward 3.0-3.25 percent (modest TLT-vs-SHY benefit through SHY rate compression); TLT yields fall less if term premium remains elevated. Net effect: modest TLT outperformance vs SHY through 2026 absent term premium compression.

Duration Mathematics: 9-10x

SHY effective duration ~1.8 years; TLT ~17-18 years. The 9-10x duration ratio is the most extreme available between major Treasury ETFs.

For 100bp parallel curve shift up: SHY falls ~1.8%; TLT falls ~17%. Net relative TLT compression ~15.2 percentage points. For 100bp parallel curve shift down: SHY rises ~1.8%; TLT rises ~17%. Net relative TLT outperformance ~15.2pp.

The extreme leverage makes SHY-vs-TLT the cleanest yield curve direction trade. A view on rate direction can be expressed through the pair with substantial leverage to TLT direction while SHY provides cash-like baseline.

For pair traders, position sizing is critical given the duration disparity. DV01-weighted equivalent: 1 TLT contract per 9-10 SHY contracts for duration-neutral. Without DV01-weighting, equal-dollar positions produce massive TLT bias.

The 2022 Hiking Cycle Test

The 2022 Fed hiking cycle produced the cleanest historical SHY-vs-TLT divergence. Fed funds rose from 0-0.25 percent (early 2022) to 5.25-5.50 percent peak (July 2023), 525bps total hikes. Combined with term premium expansion, 30Y yield rose from 1.85 percent (early 2022) to 5.10 percent peak (October 2023), 325bps rise.

SHY response: from approximately $86 (early 2022) to $82 trough (October 2023), -5 percent. SHY held up better than expected because rising rates provide rolling yield income on short maturities. The negative price impact was offset partially by higher coupon income.

TLT response: from approximately $148 (early 2022) to $83 trough (October 2023), -44 percent peak-to-trough. The massive decline reflected the 9-10x duration leverage plus simultaneous term premium expansion.

SHY-vs-TLT cumulative gain: long SHY / short TLT gained approximately 39 percentage points cumulatively through 2022-2023 hiking cycle. The pair was the single most profitable bond pair-trade in modern history.

The 2024-2026 Rate Cut Cycle

The Fed cut cycle starting September 2024 produced predictable but muted SHY-vs-TLT response. From Fed pivot to current April 2026: Fed funds fell from 5.25-5.50 percent to 3.50-3.75 percent (175-200bps cuts).

SHY response: from approximately $80 to current $83, +4 percent. The recovery reflects roll yield benefit as Fed cuts produce capital appreciation on existing short Treasuries.

TLT response: from approximately $84 to current $87, +4 percent. The muted response reflects term premium expansion offsetting most of the Fed-cut-driven yield compression. TLT did not produce typical 17 percent gain expected from 100bp Fed cuts.

SHY-vs-TLT cumulative gain: roughly equal performance through 2024-2026. The historic SHY outperformance during hiking cycles was not symmetrically reversed during the cutting cycle due to term premium dynamics.

Volatility and Trading

SHY realized volatility approximately 1-3 percent annualized vs TLT 13-17 percent. The 5-15x TLT-to-SHY volatility ratio matches duration ratio.

60-day rolling correlation between SHY and TLT averages 0.65 (moderate positive). Both move on shared yield curve direction but with different magnitudes. Correlation drops to 0.40-0.50 during curve-shape changes (steepening/flattening events).

For pair-trade implementation, SHY exposure through SHY ETF (very liquid, no tracking error) or direct 1-2Y Treasury futures (less liquid). TLT exposure through TLT ETF or 30Y futures. The vast volatility difference makes equal-dollar positions inappropriate; DV01-weighted positions essential.

The pair is most actionable as Fed pivot expression. Long SHY / short TLT during hiking cycles. Long TLT / short SHY during cutting cycles. Position changes around Fed inflection points capture the pair-trade carry effectively.

How the Pair Performs in Crises

Crisis history shows specific SHY-vs-TLT patterns. 2008-09 GFC: both rallied on flight-to-safety; TLT outperformed SHY by 25-30 percentage points peak-to-trough as Fed QE drove long yields lower. 2020 COVID: TLT outperformed SHY by 15-20pp through 2020 as zero rates supported long-duration. 2022 hiking cycle: SHY massively outperformed TLT by 39pp (most extreme on record). 2023 banking crisis (March 2023 SVB): TLT outperformed SHY by 8-10pp over 6 weeks on safe-haven rotation. 2026 Iran war: muted both, TLT modest outperformance.

The pattern: in pure flight-to-safety episodes (2008-09, 2020 COVID, 2023 banking), TLT outperforms SHY through Fed-cut-driven long yield compression. In inflation-driven episodes (2022 hiking), SHY massively outperforms TLT.

For 2026 stress scenarios, the type matters. Demand-driven recession (Fed cuts aggressively): TLT outperforms SHY by 15-25pp peak-to-trough. Inflation-driven stress (Iran war supply shock pushing Fed to pause/hike): SHY outperforms TLT by 20-40pp.

How the Pair Trades Through Cycles

Five regimes describe SHY-vs-TLT through cycles. Regime 1 (post-GFC 2009-2015 ZIRP era): TLT massively outperformed SHY as Fed QE absorbed duration. Cumulative TLT outperformance approximately 75pp. Regime 2 (2016-2018 normalization): mixed performance during rate cycle. Regime 3 (2019-2021 Fed pivot + COVID): TLT massively outperformed SHY during pivot then maintained through COVID era. Regime 4 (2022 hiking cycle): SHY massively outperformed TLT by 39pp (historic extreme). Regime 5 (current 2024-2026): roughly equal performance with elevated term premium muting TLT response to Fed cuts.

The long-run pattern: TLT outperforms SHY during Fed cutting cycles. SHY outperforms TLT during Fed hiking cycles. The 2024-2026 era represents anomaly because Fed cutting is not producing typical TLT outperformance.

Reading the Pair as a Trading Tool

For pair traders, the SHY/TLT ratio currently ~0.95 (12-month range 0.85-1.0; 5-year range 0.55-1.0).

Long TLT / short SHY captures Fed cut + term premium compression: benefits from continued Fed cuts, fiscal credibility restoration, foreign demand recovery, recession scenarios driving aggressive Fed easing. Long SHY / short TLT captures continued elevated rates: benefits from Fed pause/hike on inflation surprise, term premium expansion, fiscal deterioration, supply pressure on Treasury market.

Position sizing critical: SHY 1-3 percent vol vs TLT 13-17 percent (5-15x). DV01-weighted: 1 TLT contract per 9-10 SHY contracts. The pair has produced massive cyclical returns: 39pp gain in 2022 long SHY short TLT; current 2024-2026 muted carry.

Most actionable around Fed pivot inflections. Position change before confirmed Fed pivot captures the largest pair-trade carry. The 2024 September pivot would have triggered long-TLT-short-SHY positioning that has produced modest gain due to term premium offsetting.

How to Use the Pair as Cash Substitute

SHY is often used as cash substitute by institutional investors. Yield 3.85 percent provides return above money market funds while maintaining low duration risk. SHY total return 2024-2026 has been +6-7 percent reflecting yield income plus modest capital appreciation from Fed cuts.

For allocators, SHY-vs-TLT comparison helps decide whether to hold cash (SHY) or extend duration (TLT). Key decision criteria. First, Fed trajectory: cutting cycles favor TLT. Second, term premium outlook: compressing term premium favors TLT. Third, recession probability: higher recession probability favors TLT (Fed easing aggressively).

The April 2026 setup mixed: Fed cutting (TLT favorable) vs elevated term premium (SHY favorable). Allocator preference depends on 12-month outlook for rate cuts and fiscal trajectory. Most institutional allocators have favored intermediate IEF over both SHY and TLT in 2024-2026.

The April 2026 Configuration

SHY ~$83 with yield 3.85% April 2026; TLT $87 with yield 4.49%; SHY/TLT ratio ~0.95. Fed funds 3.50-3.75% (paused 4 months). 2024-2026 Fed cuts 175-200bps produced muted TLT response (~+4%) due to term premium expansion offsetting.

Forward-looking: 2-3 expected Fed cuts in 2026 produce modest TLT outperformance vs SHY. Recession trigger would produce aggressive Fed cuts and term premium compression - TLT outperforms SHY by 15-25pp. Inflation re-acceleration would force Fed pause/hike - SHY outperforms TLT.

Watch term premium dynamics (10Y-2Y spread, 30Y-10Y spread) alongside Fed expectations. Compressing term premium plus continued Fed cuts = TLT-favoring environment. Elevated term premium plus Fed pause = SHY-favoring. The pair is the cleanest expression of total Treasury return positioning available.

Conditional Forward Response (Tail Events)

How 20Y+ Treasury ETF has historically behaved in the 5 sessions following a top-decile or bottom-decile daily move in 1-3Y Treasury (SHY). Computed from 1,266 aligned daily observations ending .

Up-shock
1-3Y Treasury (SHY) top-decile up-day (mean trigger +0.23%)
Mean 5D forward
-0.03%
Median 5D
-0.09%
Edge vs baseline
+0.15 pp
Hit rate (positive)
47%

Following these triggers, 20Y+ Treasury ETF falls 0.03% on average over the next 5 sessions, versus an unconditional baseline of -0.18%. 127 qualifying events; 20Y+ Treasury ETF closed positive in 47% of them.

n = 127 trigger events
Down-shock
1-3Y Treasury (SHY) bottom-decile down-day (mean trigger -0.26%)
Mean 5D forward
-0.25%
Median 5D
-0.18%
Edge vs baseline
-0.08 pp
Hit rate (positive)
43%

Following these triggers, 20Y+ Treasury ETF falls 0.25% on average over the next 5 sessions, versus an unconditional baseline of -0.18%. 127 qualifying events; 20Y+ Treasury ETF closed positive in 43% of them.

n = 127 trigger events

Past behavior in the tails is descriptive, not predictive. Mean response is the simple arithmetic mean of compounded 5-day forward returns following each trigger event; baseline is the unconditional mean across the full sample window. Edge measures the gap between the two.

90-Day Statistics

1-3Y Treasury (SHY)
90D High
$83.18
90D Low
$82.06
90D Average
$82.5
90D Change
-1.17%
76 data points
20Y+ Treasury ETF
90D High
$90.82
90D Low
$83.66
90D Average
$86.89
90D Change
-6.91%
76 data points

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Frequently Asked Questions

What are SHY and TLT?+

SHY (iShares 1-3 Year Treasury Bond ETF) tracks short-duration Treasuries with effective duration ~1.8 years; TLT (iShares 20+ Year Treasury Bond ETF) tracks long-duration with effective duration ~17-18 years. Duration ratio 9-10x makes SHY-vs-TLT most extreme duration pair available through ETFs. SHY ~$83 with yield ~3.85% April 2026 (slightly above fed funds 3.50-3.75% reflecting short-duration term premium); TLT $87 with yield 4.49%. SHY/TLT ratio ~0.95 (12-month range 0.85-1.0; 5-year range 0.55-1.0).

How does duration mathematics drive the pair?+

SHY duration ~1.8 years; TLT ~17-18 years (9-10x ratio). For 100bp parallel curve shift up: SHY -1.8%; TLT -17%. Net relative TLT compression ~15.2pp. For 100bp parallel curve shift down: SHY +1.8%; TLT +17%. Net relative TLT outperformance ~15.2pp. Extreme leverage makes SHY-vs-TLT cleanest yield curve direction trade. Position sizing critical given duration disparity. DV01-weighted equivalent: 1 TLT contract per 9-10 SHY contracts for duration-neutral. Equal-dollar positions produce massive TLT bias.

What was the 2022 hiking cycle test?+

Fed funds rose from 0-0.25% (early 2022) to 5.25-5.50% peak (July 2023) = 525bps total hikes. 30Y yield rose 1.85% (early 2022) to 5.10% peak (October 2023) = 325bps rise. SHY response: ~$86 to $82 trough October 2023 = -5% (held better than expected because rising rates provide rolling yield income, partially offset by negative price impact). TLT response: ~$148 to $83 trough October 2023 = -44% peak-to-trough (massive decline from 9-10x duration leverage plus term premium expansion). Long SHY / short TLT gained ~39pp cumulatively. Single most profitable bond pair-trade in modern history.

How has the 2024-2026 cut cycle performed?+

Fed cut cycle from September 2024: Fed funds fell from 5.25-5.50% to 3.50-3.75% (175-200bps cuts). SHY response: ~$80 to current $83 = +4% (capital appreciation on existing short Treasuries from Fed cuts). TLT response: ~$84 to current $87 = +4% (muted response, term premium expansion offsetting most Fed-cut-driven yield compression). TLT did not produce typical 17% gain expected from 100bp Fed cuts. SHY-vs-TLT cumulative gain: roughly equal performance. Historic SHY outperformance during hiking cycles was NOT symmetrically reversed during cutting cycle due to term premium dynamics.

How volatile is the pair?+

SHY realized volatility ~1-3% annualized vs TLT 13-17% (5-15x ratio matching duration ratio). 60-day rolling correlation averages 0.65 (moderate positive). Both move on shared yield curve direction but different magnitudes. Correlation drops to 0.40-0.50 during curve-shape changes. SHY exposure: SHY ETF (very liquid, no tracking error) or 1-2Y Treasury futures. TLT exposure: TLT ETF or 30Y futures. Vast volatility difference makes equal-dollar positions inappropriate; DV01-weighted positions essential. Most actionable as Fed pivot expression.

How does the pair behave in crises?+

2008-09 GFC: TLT outperformed SHY 25-30pp peak-to-trough as Fed QE drove long yields lower. 2020 COVID: TLT outperformed 15-20pp through 2020 (zero rates supported long-duration). 2022 hiking cycle: SHY massively outperformed TLT by 39pp (most extreme on record). 2023 banking crisis (March SVB): TLT outperformed 8-10pp over 6 weeks on safe-haven rotation. 2026 Iran war: muted both, TLT modest outperformance. Pattern: pure flight-to-safety = TLT outperforms (Fed-cut-driven long yield compression). Inflation-driven episodes (2022) = SHY massively outperforms TLT. For 2026: demand-driven recession TLT +15-25pp; inflation-driven SHY +20-40pp.

How does the pair trade through cycles?+

Five regimes. Post-GFC 2009-2015 ZIRP: TLT massively outperformed SHY ~75pp cumulative as Fed QE absorbed duration. 2016-2018 normalization: mixed performance during rate cycle. 2019-2021 Fed pivot + COVID: TLT massively outperformed SHY during pivot then maintained through COVID era. 2022 hiking: SHY massively outperformed TLT by 39pp (historic extreme). Current 2024-2026: roughly equal with elevated term premium muting TLT response. Long-run: TLT outperforms during cutting cycles; SHY outperforms during hiking cycles. 2024-2026 anomaly: Fed cutting not producing typical TLT outperformance.

How do I trade SHY vs TLT?+

SHY/TLT ratio currently ~0.95. Long TLT / short SHY captures Fed cut + term premium compression: benefits from continued Fed cuts, fiscal credibility restoration, foreign demand recovery, recession driving aggressive easing. Long SHY / short TLT captures continued elevated rates: benefits from Fed pause/hike on inflation, term premium expansion, fiscal deterioration, Treasury supply pressure. Position sizing critical: SHY 1-3% vol vs TLT 13-17% (5-15x). DV01-weighted: 1 TLT per 9-10 SHY contracts. Pair has produced massive cyclical returns: 39pp 2022; muted 2024-2026. Most actionable around Fed pivot inflections.

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