PerpEquitiesTop analysts on stock perps · Analyst
David Westenberg (Piper Sandler): analyst track record on stock perps
David Westenberg of Piper Sandler on companies with stock perpetual futures: star rating, success rate, price-target accuracy, current calls and the measured perp reaction after each rating.
Stars4.8★
Success57%
Excess return+17.8%
rank#550
Ratings316
ratings on stock perps25
Track record
TipRanks data via FMP| 12 months | 3 years | |
|---|---|---|
| Ratings | 163 | 394 |
| Stock | 42 | 45 |
| Buy / hold / sell | 100 / 62 / 1 | 239 / 154 / 1 |
| Upgrades / downgrades / initiations | 4 / 5 / 13 | 6 / 6 / 17 |
| Price targets hit / missed | 87 / 76 (53%) | 205 / 188 (52%) |
| Avg. return after a rating (TipRanks) | +10.6% | +29.7% |
| Best / worst call | +342.5% / -62.4% | +430.1% / -88.8% |
After buy calls: median 21-day move +10.0% · vs S&P 500 +7.8% · targets hit within a year – (n = 24)
Current calls on stock perps
| Stock | Call | Target | vs last close | Date |
|---|---|---|---|---|
| $TEM Tempus AI, Inc. | Buy · Upgraded | $76.00 | +29.4% | Sep 1, 2026 |
| $CAI Caris Life Sciences, Inc. | Hold · Maintained | $21.00 | -12.6% | Aug 6, 2026 |
| $TWST Twist Bioscience Corporation | Buy · Reiterated | $115 | -9.3% | Aug 5, 2026 |
| $DHR Danaher Corporation | Hold · Maintained | $200 | -0.3% | Jul 27, 2026 |
| $TMO Thermo Fisher Scientific | Hold · Maintained | $600 | -0.5% | Jul 27, 2026 |
Recent ratings
- Sep 1, 2026 $TEM: Upgraded · Buy · $76.00 · article
- Aug 6, 2026 $CAI: Maintained · Hold · $21.00 · article
- Aug 5, 2026 $TWST: Reiterated · Buy · $115 · article
- Aug 4, 2026 $TEM: Reiterated · Hold · $56.00 · article
- Jul 31, 2026 $TEM: Maintained · Hold · $58.00 · article
- Jul 27, 2026 $DHR: Maintained · Hold · $200 · article
- Jul 27, 2026 $TMO: Maintained · Hold · $600 · article
- Jun 11, 2026 $DHR: Initiated · Hold · $200 · article
- Jun 11, 2026 $TMO: Initiated · Hold · $510 · article
- Jun 11, 2026 $TWST: Initiated · Buy · $85.00 · article
- May 12, 2026 $CAI: Maintained · Hold · $21.00 · article
- May 12, 2026 $TEM: Maintained · Hold · $58.00 · article
- Apr 10, 2026 $CAI: Initiated · Hold · $21.00 · article
- Feb 25, 2026 $TEM: Reiterated · Hold · $80.00 · article
- Dec 4, 2025 $TEM: Maintained · Hold · $80.00 · article
- Nov 11, 2025 $TEM: Reiterated · Hold · $80.00 · article
- Oct 22, 2025 $TEM: Maintained · Hold · $105 · article
- Aug 11, 2025 $TEM: Maintained · Hold · $70.00 · article
- May 15, 2025 $TEM: Reiterated · Hold · $70.00 · article
- May 7, 2025 $TEM: Maintained · Hold · $55.00 · article
David Westenberg4.8★ · 57% success · +17.8% excess return · TipRanks data via FMP · Source headlines via TheFly/StreetInsider (FMP). Reaction = venue-median perp move after our detection — an observation, not investment advice.