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Subbu Nambi (Guggenheim): analyst track record on stock perps

Subbu Nambi of Guggenheim on companies with stock perpetual futures: star rating, success rate, price-target accuracy, current calls and the measured perp reaction after each rating.

Stars4.9★

Success72%

Excess return+37.1%

rank#231

Ratings145

ratings on stock perps28

Track record

TipRanks data via FMP

	12 months	3 years
Ratings	123	183
Stock	31	34
Buy / hold / sell	112 / 11 / 0	162 / 21 / 0
Upgrades / downgrades / initiations	1 / 0 / 4	2 / 2 / 20
Price targets hit / missed	46 / 65 (41%)	73 / 86 (46%)
Avg. return after a rating (TipRanks)	+0.1%	+13.0%
Best / worst call	+153.7% / -75.3%	+341.8% / -88.4%

After buy calls: median 21-day move +2.9% · vs S&P 500 +0.4% · targets hit within a year 73% (n = 28)

Current calls on stock perps

Stock	Call	Target	vs last close	Date
$TEM Tempus AI, Inc.	Buy · Reiterated	$65.00	+10.7%	Aug 3, 2026
$DHR Danaher Corporation	Buy · Reiterated	$200	-0.3%	Jul 21, 2026
$TWST Twist Bioscience Corporation	Buy · Maintained	$107	-15.6%	Jun 29, 2026

Recent ratings

Aug 3, 2026 $TEM: Reiterated · Buy · $65.00 · article
Jul 21, 2026 $DHR: Reiterated · Buy · $200 · article
Jul 15, 2026 $TEM: Reiterated · Buy · $65.00 · article
Jun 29, 2026 $TWST: Maintained · Buy · $107 · article
Jun 1, 2026 $TEM: Maintained · Buy · $60.00 · article
May 6, 2026 $TEM: Maintained · Buy · $60.00 · article
May 4, 2026 $TWST: Reiterated · Buy · $60.00 · article
Apr 21, 2026 $DHR: Reiterated · Buy · $235 · article
Mar 30, 2026 $TEM: Maintained · Buy · $60.00 · article
Mar 30, 2026 $TWST: Maintained · Buy · $55.00 · article
Feb 24, 2026 $TEM: Reiterated · Buy · $95.00 · article
Feb 2, 2026 $TWST: Reiterated · Buy · $50.00 · article
Jan 28, 2026 $DHR: Reiterated · Buy · $275 · article
Jan 26, 2026 $TWST: Maintained · Buy · $50.00 · article
Jan 5, 2026 $DHR: Maintained · Buy · $275 · article
Oct 21, 2025 $DHR: Reiterated · Buy · $250 · article
Sep 26, 2025 $TEM: Reiterated · Buy · $95.00 · article
Aug 19, 2025 $TWST: Maintained · Buy · $50.00 · article
Aug 8, 2025 $TEM: Reiterated · Buy · $75.00 · article
Jul 22, 2025 $DHR: Reiterated · Buy · $250 · article

Subbu Nambi4.9★ · 72% success · +37.1% 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.