>>> US After Hours Summary: NU +6.1% up on earnings; COF +5.6% up after Warren B

After Hours Summary: NU +6.1% up on earnings; COF +5.6% up after Warren Buffett discloses stake; RUM -3.4% lower on earnings; RH -3.6% slips after Warren Buffett discloses he closed his position

After Hours Gainers:

Companies trading higher in after hours in reaction to earnings/guidance: NU +6.1%, XP +1.7%, YALA +1.3%, NVTS +0.9%, DAC +0.7% (also appoints new COO)

Companies trading higher in after hours in reaction to news: COF +5.6% (Warren Buffett discloses stake), PX +4.1% (increases dividend), NVTA +2.4% (appealing NTRA verdict), CUTR +2% (cancels special meeting), DEO +1.9% (Warren Buffett discloses stake), OMCL +1.3% (appoints new CFO), SPWR +1% (names new CFO), BRKR +0.8% (approves $500 mln repurchase program), HPQ +0.8% (Warren Buffett increases stake), GMED +0.2% (FDA approved non-fusion scoliosis correction system), AA +0.1% (signs agreement with Emirates Global Aluminium), GOOG +0.1% (Bill Ackman discloses sizeable stake)

After Hours Losers:

Companies trading lower in after hours in reaction to earnings/guidance: RUM -3.4% (also acquires CallIn), CBAY -2.9%

Companies trading lower in after hours in reaction to news: DCO -10% (stock offering), CHRS -8% ($50 mln stock offering), AGL -7.4% (stock offering), NOG -3.8% (public offering; joint acquisition of Forge Energy Assets), SOVO -3.7% (stock offering), RH -3.6% (Warren Buffett closes stake), MIST -2.6% (stock offering), SILK -2.3% (files mixed shelf), FWRG -2.1% (stock offering), BK -1.4% (Warren Buffett closes stake), MCK -1.3% (Warren Buffett decreases stake), KOD -1.3% (files $350 mln mixed shelf), CMG -0.8% (Bill Ackman decreases stake), BILL -0.6% (material weakness in internal control over financial reporting), RKLB -0.5% (to launch second-half of TROPICS satellite), CMCSA -0.2% (Peacock to exclusively carry an NFL playoff game, according to WSJ)