PHLX SOX · Intrayear DD vs Full Year — Every year, the dip comes first
Intrayear drawdown — Semis dip hard every single year; the cycle's amplitude lives here.
Average intrayear drawdown runs roughly a notch deeper than the S&P (~−20% vs −14%). Even up years routinely include a double-digit mid-year drop — the cost of the sector's native volatility.
What this page answers
Across 33 years, the deepest intrayear drawdown in the Philadelphia Semiconductor Index (SOX) averaged -28.9% — yet the average full-year return was still +20.7%. In 21 of those years the index fell more than 10% intrayear and still finished positive: the dip is the norm, not the anomaly.
Average intrayear drawdown runs roughly a notch deeper than the S&P (~−20% vs −14%). Even up years routinely include a double-digit mid-year drop — the cost of the sector's native volatility. The data is refreshed by the History of Market pipeline and published as a stable JSON endpoint for research, citation, and AI-agent use.
The plate
Latest Snapshot
- Updated
- 2026-08-14
- Observations
- 33
- Average
- -28.9%
- Latest
- +20.7%
Philadelphia Semiconductor Index (SOX) — deepest intrayear drawdown vs full-year return
| Year | Deepest intrayear drawdown | Full-year return |
|---|---|---|
| 2026 | -28.6% | +75.9% |
| 2025 | -34.9% | +42.2% |
| 2024 | -25.0% | +19.3% |
| 2023 | -17.5% | +64.9% |
| 2022 | -46.3% | -35.8% |
| 2021 | -14.7% | +41.2% |
| 2020 | -35.0% | +51.1% |
| 2019 | -18.4% | +60.1% |
| 2018 | -26.0% | -7.8% |
| 2017 | -10.3% | +38.2% |
| 2016 | -14.8% | +36.6% |
| 2015 | -25.0% | -3.4% |
| 2014 | -16.4% | +28.4% |
| 2013 | -8.2% | +39.3% |
| 2012 | -20.5% | +5.4% |
| 2011 | -31.0% | -11.5% |
| 2010 | -23.3% | +14.4% |
| 2009 | -19.4% | +69.6% |
| 2008 | -59.4% | -48.0% |
| 2007 | -26.4% | -12.6% |
| 2006 | -30.1% | -2.6% |
| 2005 | -14.4% | +10.7% |
| 2004 | -37.2% | -14.7% |
| 2003 | -23.1% | +75.7% |
| 2002 | -66.4% | -44.6% |
| 2001 | -51.6% | -9.4% |
| 2000 | -59.8% | -18.2% |
| 1999 | -17.4% | +101.0% |
| 1998 | -42.4% | +33.0% |
| 1997 | -38.5% | +9.7% |
| 1996 | -33.4% | +19.8% |
| 1995 | -35.9% | +43.2% |
| 1994 | -13.7% | +17.7% |
Showing the full record (33 rows). Raw series: https://historyofmarket.com/api/semi/intrayear-dd.json
Data & Source
GET /api/semi/intrayear-dd.json — Canonical dataset endpoint.
Exchange closing prices · Company filings · Robert Shiller · FRED · NBER.
FAQ
Where does this data come from?
History of Market combines public market and macro datasets — exchange closing prices, company filings, Robert Shiller, FRED, NBER, and the UBS Global Investment Returns Yearbook (Dimson–Marsh–Staunton). The exact endpoint for this panel is linked below.
How often is it updated?
Daily-tier datasets refresh after the U.S. market close, with a broader weekly refresh on Sunday. The timestamp shown on this page comes from the JSON payload.
Can I use the data?
Yes, for research and education with attribution to History of Market. Upstream data sources retain their own terms.