PSIX — POWER SOLUTIONS INTERNATIONAL, INC.
Price · 2024-12-26 → 2026-08-21
414 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2024-12-26.
Performance
Technicals
Others in Industrials
Measured signals that fired on PSIX
| date | signal | measured base rate |
|---|---|---|
| 2026-08-19 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-08-04 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-07-27 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
| 2026-07-14 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-07-08 | Bollinger bandwidth breaks out of its own compression structure | -0.63% over 21 days · t = -2.80 · n = 7,196 statistically distinguishable from its control group |
| 2026-05-20 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-02-12 | Li Xun CFO | Shares withheld for tax | 3.4K | 92.72 | 317.9K |
| 2026-02-12 | Li Xun CFO | Option exercise | 7.5K | 2.00 | 15.0K |
| 2025-12-11 | Shea Courtney C. Director | Grant or award | 5.0K | 0.00 | 0 |
| 2025-12-11 | SIMPKINS FRANK P Director | Grant or award | 5.0K | 0.00 | 0 |
| 2025-12-11 | He Hong Director | Grant or award | 5.0K | 0.00 | 0 |
| 2025-09-11 | Shandong Heavy Industry Group Co., Ltd. | Open-market sale | 30.5K | 94.33 | 2.9M |
| 2025-09-11 | Weichai America Corp. | Open-market sale | 30.5K | 94.33 | 2.9M |
| 2025-09-11 | Weichai Power Co., Ltd. | Open-market sale | 30.5K | 94.33 | 2.9M |
| 2025-09-11 | Weichai America Corp. | Open-market sale | 23.2K | 93.64 | 2.2M |
| 2025-09-11 | Shandong Heavy Industry Group Co., Ltd. | Open-market sale | 23.2K | 93.64 | 2.2M |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BlackRock, Inc. | 43.6M | 715.6K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 28.4M | 466.2K |
| Situational Awareness LP | 26.3M | 432.3K |
| Situational Awareness Partners LP | 26.3M | 432.3K |
| VANGUARD CAPITAL MANAGEMENT LLC | 20.8M | 341.0K |
| Allspring Global Investments Holdings, LLC | 19.9M | 301.2K |
| DIMENSIONAL FUND ADVISORS LP | 17.2M | 283.2K |
| BARCLAYS PLC | 14.6M | 239.0K |
| Busey Bank | 13.4M | 220.0K |
| GEODE CAPITAL MANAGEMENT, LLC | 12.0M | 196.3K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Ask the AI about PSIX
The assistant reads every block on this page — price history, filings, insider transactions, institutional positions, short volume, macro and the measured base rates — and says what it implies, quoting the number behind each claim and declaring what it does not have.
Everything on this page is live in the terminal.
Charts, filings, insider flow and the AI — open without an account.
Free plan for good. Pro is $69.99/mo, or $4.99 for a 7-day trial. See the plans →