TIP vs Short Treasury (SHY)
TIP (iShares TIPS Bond ETF, modified duration ~7 years, AUM ~$22 billion) shows a trailing 12-month yield of approximately 4.5 percent and a 30-day SEC yield of approximately 2.5 percent in April 2026. SHY (iShares 1-3 Year Treasury, duration 1.9 years, AUM ~$25 billion) shows a 30-day SEC yield of approximately 3.81 percent.
Also known as: TIPS (TIP) (ETF_TIP, TIPS) · 1-3Y Treasury (SHY) (ETF_SHY)
Why This Comparison Matters
TIP (iShares TIPS Bond ETF, modified duration ~7 years, AUM ~$22 billion) shows a trailing 12-month yield of approximately 4.5 percent and a 30-day SEC yield of approximately 2.5 percent in April 2026. SHY (iShares 1-3 Year Treasury, duration 1.9 years, AUM ~$25 billion) shows a 30-day SEC yield of approximately 3.81 percent. The TIP/SHY ratio sits near 1.30. The pair captures duration risk plus inflation protection (TIP) versus cash-equivalent short Treasury carry (SHY). TIP outperforms when real yields fall; SHY outperforms when real yields rise faster than realized inflation, as it did during the 2022 hiking cycle.
What TIP and SHY Capture
TIP (iShares TIPS Bond ETF) holds U.S. Treasury Inflation-Protected Securities with remaining maturity above 1 year. April 2026 portfolio characteristics: trailing 12-month yield approximately 4.5 percent, 30-day SEC yield approximately 2.5 percent, modified duration approximately 7 years, expense ratio 0.18 percent, AUM approximately $22 billion. The TTM yield reflects inflation accruals (CPI adjustments to principal) plus coupon income; the 30-day SEC yield reflects only the current real yield on the portfolio.
SHY (iShares 1-3 Year Treasury Bond ETF) holds nominal Treasury bonds maturing in 1 to 3 years. April 2026: 30-day SEC yield approximately 3.81 percent, modified duration 1.9 years, expense ratio 0.15 percent, AUM approximately $25 billion. SHY is functionally a cash-plus instrument; TIP is a real-yield duration trade. The pair captures the trade-off between earning carry on short nominal Treasury versus taking duration risk for inflation protection.
Duration vs Cash-Equivalent Distinction
TIP duration of 7 years means a 100 basis point real yield rise produces approximately 7 percent TIP price decline. SHY duration of 1.9 years means a 100 basis point yield rise produces 1.9 percent decline. The 3.7x duration ratio is the dominant driver of pair behavior in any rate-shock environment.
The trade-off is ex-ante carry versus ex-post total returns. SHY locks in approximately 3.81 percent annualized for 12 months with minimal duration risk. TIP locks in 2.5 percent real for approximately 7 years with full duration risk; inflation accruals add to total return if CPI rises faster than the breakeven priced (currently 2.44 percent on 10-year breakeven). At purchase, TIP investors are betting realized inflation will exceed 2.44 percent; SHY investors are taking nominal yield with no inflation exposure and minimal interest-rate exposure.
The Yield Curve and TIP-SHY Spread
TIP yield decomposes as: real yield (approximately 1.87 percent on 10-year TIPS) plus expected inflation (approximately 2.44 percent breakeven) equals approximately 4.31 percent nominal-equivalent yield to maturity. SHY yield (approximately 3.81 percent) reflects the front-end nominal Treasury curve.
The TIP-SHY spread therefore embeds three macro variables: the slope of the real yield curve (TIPS 10-year vs short TIPS), the 5Y to 10Y nominal curve (currently +37 basis points), and the front-end vs long-end breakeven differential. Spread narrowing typically signals curve flattening or front-end yield rises (Fed hiking expectations); spread widening signals long-end real yield compression or curve steepening (Fed easing expectations or term premium repricing).
Real Yield as Primary TIP Driver
Real yield is the dominant TIP price driver. Long-run correlation between TIP price changes and 10-year TIPS yield changes is approximately negative 0.95 (high inverse). SHY shows similar negative correlation with the 1-year nominal yield (approximately negative 0.90).
The 10-year real yield was approximately negative 1 percent in early 2022, the lowest sustained reading in TIPS history (TIPS launched 1997). It rose to plus 2.5 percent by October 2023, a 350 basis point swing that produced approximately 25 percent TIP price decline peak-to-trough across 2022 to 2023. Real yields settled in the 1.5 to 2.0 percent range through 2024 to 2026. Current 10-year TIPS yield 1.87 percent is near the upper end of that range, leaving TIP modestly cheap relative to the post-2010 average real yield near 0.5 percent.
The 2008-09 GFC Episode
The 2008 to 2009 GFC produced two distinct phases for TIP versus SHY. October to December 2008: TIP price declined approximately 8 percent (initial deflation scare drove 10-year breakevens to negative 0.7 percent, briefly implying 10 years of negative inflation). SHY rose approximately 6 percent (flight to short Treasuries during liquidity dash). Pair underperformed by 14 percentage points in 3 months.
After the Fed announced QE in March 2009, TIP rallied approximately 12 percent through December 2009 as breakevens rebuilt to 1.8 percent. SHY returned approximately 0 percent (already at zero rates). Pair outperformed by 12 percentage points over 9 months. The full 2008 to 2009 cycle TIP/SHY round-trip was minus 14 then plus 12 equals net minus 2 percentage points, illustrating how the same shock can favor either leg depending on policy response timing.
The 2020 COVID and 2021-22 Inflation Episodes
2020 COVID: TIP declined approximately 8 percent in March 2020 (deflation scare plus liquidity dash). SHY rose approximately 2 percent. Pair underperformed 10 percentage points. Then Fed QE plus fiscal stimulus plus reopening drove breakevens from 0.6 percent to 2.5 percent across Q2 to Q4 2020. TIP returned approximately 12 percent through December 2020 versus SHY flat. Pair outperformed 12 percentage points over 9 months.
2021 to 2022 inflation: TIP returned approximately 5 percent through 2021 as inflation accruals exceeded modest real yield rises. The 2022 hiking cycle then produced TIP minus 18 percent peak-to-trough through October 2022 versus SHY minus 4 percent (the only sustained 2010s to 2020s episode where TIP underperformed SHY in absolute terms). 2023 saw TIP recover modestly as real yields stabilized; SHY benefited from rising front-end yields with limited duration exposure.
The 2022 Duration Massacre
2022 was the worst calendar year for TIPS in modern history. The 10-year real yield rose from negative 1 percent (January 2022) to plus 1.6 percent (October 2022), a 260 basis point move. TIP price declined approximately 18 percent peak-to-trough; SHY declined approximately 4 percent. The TIP/SHY ratio compressed from 1.42 to 1.18, a 17 percent ratio decline.
The episode revealed an underappreciated risk: TIPS protect against inflation via the principal accrual mechanism, but they offer no protection against real yield rises. When the Fed hikes aggressively against high inflation, real yields can rise faster than realized inflation, producing large TIP drawdowns despite high CPI prints. The 2022 episode was the textbook example. Investors expecting TIPS to hedge their inflation exposure were instead burned by the duration leg. SHY, despite its lower yield, outperformed by approximately 14 percentage points over 10 months.
The 2024-2026 Re-Steepening
2024 through early 2026 saw real yields stable in the 1.5 to 2.0 percent range while front-end nominal yields fell from 5.5 percent (Q3 2024) to 3.81 percent (April 2026). TIP returned approximately 12 percent over 24 months (modest real yield decline plus inflation accruals). SHY returned approximately 9 percent (carry plus modest duration gain from front-end rate cuts).
The Iran war in Q1 to Q2 2026 produced minor effects on TIP (real yields stable, breakevens up 12 basis points) and SHY (front-end stable as Fed paused). Both posted positive YTD returns through April 2026. The TIP/SHY ratio sits at 1.30, near the multi-year average. The current configuration is balanced: neither leg is signaling strong directional bias, and the pair is best positioned for setup-specific allocation rather than directional bets.
Setup Probabilities
Setup 1 (40 percent probability): Soft landing, real yields drift to 1.5 percent, breakevens stable. TIP returns 5 to 8 percent over 12 months, SHY returns 3 to 4 percent. TIP outperforms by 2 to 4 percentage points. Trade: overweight TIP modestly.
Setup 2 (25 percent): Recession, Fed cuts to 2 percent, real yields fall to 0.5 percent. TIP returns 12 to 15 percent (duration gain plus breakeven compression). SHY returns 6 to 8 percent. TIP outperforms 5 to 7 percentage points. Trade: overweight TIP aggressively. Setup 3 (20 percent): Sticky inflation, Fed pauses, real yields rise to 2.5 percent. TIP returns minus 3 to minus 5 percent (duration loss exceeds inflation accruals). SHY returns 4 percent. SHY outperforms 7 to 9 percentage points. Trade: overweight SHY. Setup 4 (15 percent): Stagflation, Fed forced to hike, real yields rise to 3 percent, breakevens spike to 3.0 percent. TIP returns minus 8 percent (duration dominates), SHY returns minus 1 percent. SHY outperforms 7 percentage points. Trade: short TIP, long SHY.
Reading the Pair as a Trading Tool
Basic dashboard: track the TIP/SHY ratio alongside the 10-year real yield. April 2026 levels: ratio 1.30, real yield 1.87 percent. Ratio above 1.40 typically signals real yields below 1 percent (TIP outperformance). Ratio below 1.20 typically signals real yields above 2.5 percent (SHY outperformance).
Two key signals. First, ratio breaks: ratio falling below 1.25 typically signals duration stress and likely Fed pause-to-hike pivot. Ratio above 1.40 signals soft-landing or recession territory with falling real yields. Second, divergence from breakeven: when 10-year breakeven rises but TIP/SHY ratio falls, real yields are rising faster than inflation expectations (textbook 2022 stagflation pattern). When breakeven falls but ratio rises, real yields are falling faster than inflation expectations (textbook recession setup). Current April 2026 ratio 1.30 with breakeven 2.44 percent and real yield 1.87 percent represents balanced soft-landing pricing.
Conditional Forward Response (Tail Events)
How 1-3Y Treasury (SHY) has historically behaved in the 5 sessions following a top-decile or bottom-decile daily move in TIPS (TIP). Computed from 1,266 aligned daily observations ending .
Following these triggers, 1-3Y Treasury (SHY) falls 0.09% on average over the next 5 sessions, versus an unconditional baseline of -0.02%. 127 qualifying events; 1-3Y Treasury (SHY) closed positive in 33% of them.
Following these triggers, 1-3Y Treasury (SHY) rises 0.05% on average over the next 5 sessions, versus an unconditional baseline of -0.02%. 127 qualifying events; 1-3Y Treasury (SHY) closed positive in 50% of them.
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.
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Frequently Asked Questions
What is TIP yield vs SHY yield in April 2026?+
TIP shows a trailing 12-month yield of approximately 4.5 percent (reflecting inflation accruals plus coupon) and a 30-day SEC yield of approximately 2.5 percent (current real yield on the portfolio). SHY shows a 30-day SEC yield of approximately 3.81 percent. The TTM yield comparison favors TIP, but the SEC yield comparison favors SHY because the TIP SEC yield does not include inflation accruals that boost total return when CPI rises. For total-return forecasting, the TTM yield is the more relevant number.
How does duration affect TIP vs SHY returns?+
TIP modified duration is approximately 7 years; SHY duration is 1.9 years. A 100 basis point yield rise produces approximately 7 percent TIP price decline vs 1.9 percent SHY decline, a 3.7x ratio. The duration gap is the dominant driver of pair returns in any rate shock. The 2022 episode (10-year TIPS yield rose 260 basis points) produced TIP minus 18 percent vs SHY minus 4 percent peak-to-trough, a 14 percentage point underperformance for TIP.
When does TIP outperform SHY?+
TIP outperforms SHY when real yields fall (typically during Fed easing cycles, recessions, or growth-disinflation episodes) or when realized inflation exceeds priced breakevens. The 2009 to 2012 period saw TIP plus 25 percent vs SHY plus 4 percent as real yields fell to negative territory and breakevens rebuilt. The 2020 to 2021 reflation saw TIP plus 12 percent vs SHY flat. The 2024 to 2026 stable-real-yield-plus-positive-CPI environment has produced TIP plus 12 percent vs SHY plus 9 percent.
When does SHY outperform TIP?+
SHY outperforms TIP when real yields rise faster than realized inflation, typically during aggressive Fed hiking cycles against entrenched inflation. The 2022 episode produced SHY minus 4 percent vs TIP minus 18 percent (14 percentage point SHY outperformance) as the Fed hiked 525 basis points against 9 percent CPI. The 2008 deflation scare initially saw SHY plus 6 percent vs TIP minus 8 percent before the relationship reversed when inflation expectations rebuilt across 2009 to 2012.
Why does the 30-day SEC yield differ from TTM yield for TIP?+
TIP reports two yields. The 30-day SEC yield (approximately 2.5 percent) reflects only current real yield on the portfolio. The TTM (trailing 12 months) yield (approximately 4.5 percent) includes inflation accruals (CPI adjustments to principal) plus coupon income. When CPI is positive, TTM yield exceeds SEC yield because inflation accruals boost total return. The TTM yield is the more relevant number for total return forecasting; the SEC yield is the more relevant number for current carry comparisons against nominal Treasury ETFs like SHY.
How did TIP vs SHY perform in 2022?+
2022 was the worst calendar year for TIPS in modern history. The 10-year real yield rose from negative 1 percent (January) to plus 1.6 percent (October), a 260 basis point move. TIP price declined approximately 18 percent peak-to-trough; SHY declined only 4 percent. The TIP/SHY ratio compressed from 1.42 to 1.18 (negative 17 percent). The episode revealed that TIPS protect against inflation via principal accrual but offer no protection against real yield rises, which can dominate during aggressive Fed hiking cycles even when CPI is high.
What does the TIP/SHY ratio signal?+
The TIP/SHY ratio captures real yield level plus duration premium plus inflation expectations. Ratio above 1.40 typically signals real yields below 1 percent (favorable for TIP). Ratio below 1.20 typically signals real yields above 2.5 percent (favorable for SHY). Current April 2026 ratio at 1.30 with 10-year real yield 1.87 percent and breakeven 2.44 percent represents balanced soft-landing pricing. Ratio breaks below 1.25 signal duration stress and likely Fed pivot risk; ratio above 1.40 signals recession or growth disinflation territory.
How do I use TIP and SHY in portfolio construction?+
TIP serves as inflation insurance with duration risk; SHY serves as cash-plus with negligible duration. Conservative portfolios typically hold both: SHY for liquidity reserves and known duration on cash needs, TIP for inflation hedging on the long-dated allocation. Aggressive inflation-hedging portfolios overweight TIP when real yields are above 1.5 percent (current April 2026 environment). Defensive portfolios overweight SHY when real yields are below 0.5 percent (limited TIP upside) or when Fed hiking expectations are rising (TIP duration risk dominates).
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