S&P 500 7,757.17 +0.58%
Nasdaq 26,702.86 +1.05%
S&P/TSX 36,324.99 +0.60%
Apple 343.99 +1.32%
Nvidia 221.97 +2.54%
Microsoft 532.95 +0.20%
Shopify 244.93 +0.38%
Royal Bank 283.62 +1.23%
CAD/USD 0.7120 +0.15%
AFTER HRS · 16:10 ET
Market ClerkRecap
Wed Oct 21 · after hours2 signals today106 insider buys this week · $305.5MCIRO short report next: Oct 31The week ahead
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Market Movers

Gainers, losers, and the biggest moves, refreshed every 20 minutes through pre-market, the regular session, and after-hours, across the stocks we track: tickers with an insider filing, a Congress trade, or a short-interest report in the last 45 days, capped at 200 names. Not the whole market , the stocks that already show up somewhere else on this site. Prices as of Oct 21, 04:01 p.m. ET.

United StatesCanada

Top gainers

TickerCompanyPriceChange
RAKRRainmaker Worldwide Inc.$0.00+3900.00%
NRXSCLNeuraxis, INC$7.74+18.53%
KPTIKaryopharm Therapeutics Inc.$0.42+18.22%
RTSNRetension Pharmaceuticals, Inc.$16.33+16.06%
ALMRAlamar Biosciences, Inc.$31.45+11.68%
MOBXMOBIX LABS, INC$0.82+10.27%
BLNDBlend Labs, Inc.$0.99+9.64%
SNESSenesTech, Inc.$0.75+9.54%
CRCLCircle Internet Group, Inc.$86.97+9.33%
APLDApplied Digital Corp.$20.98+8.54%

Top losers

TickerCompanyPriceChange
NTRPNextTrip, Inc.$1.36−18.56%
SAFXXCF Global, Inc.$0.18−15.12%
CTNTCHEETAH NET SUPPLY CHAIN SERVICE INC.$2.75−13.52%
KSEZKinetic Seas Inc.$0.03−12.50%
ALMUAeluma, Inc.$7.95−10.17%
AAOIAPPLIED OPTOELECTRONICS, INC.$75.57−9.75%
MSTRStrategy Inc$136.83−9.56%
TDICDreamland Ltd$1.94−9.35%
CNXUConexeu Sciences Inc.$2.99−9.12%
CDXSCODEXIS, INC.$1.24−8.82%

Biggest movers

Ranked by size of the move, up or down. We don't have volume data, so this isn't “most active,” just the largest percentage swings.

TickerCompanyPriceChange
RAKRRainmaker Worldwide Inc.$0.00+3900.00%
NTRPNextTrip, Inc.$1.36−18.56%
NRXSCLNeuraxis, INC$7.74+18.53%
KPTIKaryopharm Therapeutics Inc.$0.42+18.22%
RTSNRetension Pharmaceuticals, Inc.$16.33+16.06%
SAFXXCF Global, Inc.$0.18−15.12%
CTNTCHEETAH NET SUPPLY CHAIN SERVICE INC.$2.75−13.52%
KSEZKinetic Seas Inc.$0.03−12.50%
ALMRAlamar Biosciences, Inc.$31.45+11.68%
MOBXMOBIX LABS, INC$0.82+10.27%

Universe: distinct US and Canadian tickers with an insider filing, a Congress trade, or a CIRO short-interest report in the last 45 days, ranked by most-recent activity and capped at 200, refreshed every 20 minutes through pre-market, the regular session, and after-hours via Yahoo's public quote endpoint. This is deliberately not the full market, and there's no sector heatmap here: this database has no sector or industry data, so rather than invent one, we're shipping gainers/losers/biggest movers only. Every ticker links through to its full page with insider activity, short interest, and the Work Order verdict. Not investment advice.

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