Top analysts on stock perps · Analyst

Karl Ackerman (Exane BNP Paribas): analyst track record on stock perps

Karl Ackerman of Exane BNP Paribas 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★

Success60%

Excess return+26.0%

rank#431

Ratings188

ratings on stock perps20

Track record

TipRanks data via FMP

	12 months	3 years
Ratings	11	28
Stock	11	19
Buy / hold / sell	11 / 0 / 0	19 / 7 / 2
Upgrades / downgrades / initiations	8 / 0 / 1	14 / 6 / 4
Price targets hit / missed	10 / 0 (100%)	25 / 1 (96%)
Avg. return after a rating (TipRanks)	+82.7%	+304.1%
Best / worst call	+262.0% / +8.4%	+1,358.8% / -23.6%

After buy calls: median 21-day move +12.9% · vs S&P 500 +10.9% · targets hit within a year 89% (n = 18)

Current calls on stock perps

Stock	Call	Target	vs last close	Date
No current calls on stock perps.

Recent ratings

Jan 21, 2026 $STX: Upgraded · Buy · article
Nov 20, 2025 $ALAB: Initiated · Buy · $225 · article
Oct 13, 2025 $CIEN: Upgraded · Buy · $185 · article
Oct 13, 2025 $MU: Upgraded · Buy · $270 · article
Sep 25, 2025 $ANET: Upgraded · Buy · $172 · article
Aug 29, 2025 $MRVL: Maintained · Buy · $80.00 · article
Jun 11, 2025 $ANET: Downgraded · Hold · article
May 16, 2025 $WDC: Maintained · Buy · $62.00 · article
May 16, 2025 $STX: Upgraded · Hold · $100 · article
Apr 9, 2025 $MTSI: Upgraded · Buy · $135 · article
Mar 11, 2025 $LITE: Upgraded · Buy · $92.00 · article
Jan 28, 2025 $CSCO: Upgraded · Buy · $72.00 · article
Oct 9, 2024 $CIEN: Downgraded · Hold · $67.00 · article
Sep 12, 2024 $MU: Downgraded · Sell · $67.00 · article
May 13, 2024 $CSCO: Upgraded · Hold · $50.00 · article
Apr 11, 2024 $CIEN: Initiated · Buy · $57.00 · article
Jan 11, 2024 $STX: Downgraded · Sell · $65.00 · article
Sep 20, 2023 $WDC: Upgraded · Buy · $58.00 · article
Jul 20, 2023 $CSCO: Initiated · Sell · $45.00 · article
Jul 20, 2023 $ANET: Initiated · Buy · $210 · article

Karl Ackerman4.8★ · 60% success · +26.0% 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.