Top 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★
Success56%
Excess return+17.9%
rank#453
Ratings322
ratings on stock perps63
Track record
TipRanks data via FMP| 12 months | 3 years | |
|---|---|---|
| Ratings | 180 | 403 |
| Stock | 48 | 51 |
| Buy / hold / sell | 105 / 72 / 3 | 239 / 161 / 3 |
| Upgrades / downgrades / initiations | 5 / 8 / 13 | 6 / 9 / 18 |
| Price targets hit / missed | 99 / 81 (55%) | 226 / 176 (56%) |
| Avg. return after a rating (TipRanks) | +22.9% | +39.9% |
| Best / worst call | +1,400.3% / -60.2% | +1,400.3% / -86.7% |
After buy calls: median 21-day move +5.2% · vs S&P 500 +3.2% (n = 32)
Current calls on stock perps
| Stock | Call | Target | vs last close | Date |
|---|---|---|---|---|
| $ILMN Illumina, Inc. | Buy · Reiterated | $305 | +13.2% | Sep 28, 2026 |
| $TEM Tempus AI, Inc. | Buy · Upgraded | $76.00 | +12.4% | Sep 1, 2026 |
| $CAI Caris Life Sciences, Inc. | Hold · Maintained | $21.00 | -34.4% | Aug 6, 2026 |
| $GRAL GRAIL Inc. | Hold · Maintained | $56.00 | -57.8% | Aug 6, 2026 |
| $TWST Twist Bioscience Corporation | Buy · Reiterated | $115 | -17.8% | Aug 5, 2026 |
| $DHR Danaher Corporation | Hold · Maintained | $200 | -13.2% | Jul 27, 2026 |
| $TMO Thermo Fisher Scientific | Hold · Maintained | $600 | -11.0% | Jul 27, 2026 |
Recent ratings
- Sep 28, 2026 $ILMN: Reiterated · Buy · $305 · article
- Sep 28, 2026 $ILMN: Reiterated · Buy · $305 · article
- Sep 1, 2026 $TEM: Upgraded · Buy · $76.00 · article
- Aug 6, 2026 $CAI: Maintained · Hold · $21.00 · article
- Aug 6, 2026 $GRAL: Maintained · Hold · $56.00 · article
- Aug 5, 2026 $TWST: Reiterated · Buy · $115 · article
- Aug 4, 2026 $TEM: Reiterated · Hold · $56.00 · article
- Aug 3, 2026 $ILMN: Reiterated · Buy · $225 · article
- Jul 31, 2026 $ILMN: Maintained · Buy · $200 · 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
- Jul 1, 2026 $ILMN: Reiterated · Buy · $200 · 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
- Jun 2, 2026 $GRAL: Maintained · Hold · $56.00 · article
- May 12, 2026 $CAI: Maintained · Hold · $21.00 · article
- May 12, 2026 $TEM: Maintained · Hold · $58.00 · article
- May 6, 2026 $GRAL: Maintained · Hold · $56.00 · article
David Westenberg4.8★ · 56% success · +17.9% 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.