Stocks making the biggest moves after hours: Interactive Brokers, J.B. Hunt, Alcoa and more
Interactive Brokers (IBKR) shares fell 1% after Q3 earnings missed estimates at $0.67 per share, though revenue of $1.91B exceeded expectations. J.B. Hunt (JBHT) dropped 2% with EPS of $1.82 missing forecasts, while revenue of $3.68B beat estimates. Varonis Systems (VRNS) rose 2% after Proofpoint announced a $6.3B acquisition deal. Alcoa (AA) gained 2% with EPS of $1.82 beating estimates, but revenue of $3.70B missed expectations.
How this was made

The 30-second read
Why it matters
Immediate price moves reflect fresh earnings data and a high‑value M&A deal.
Market read
The article provides fresh earnings and M&A data that directly moved four U.S. stocks in after‑hours trading.
What to watch
Potential forward guidance or margin trends not disclosed yet could alter the short‑term outlook.
Background
After‑hours roundup of Q3 earnings and a major acquisition announcement.
Ticker impact
Interactive Brokers reported Q3 adjusted EPS of $0.67, missing consensus of $0.68, causing a 1% after‑hours decline.
likely pressure as the market prices in the earnings miss
The miss is a fresh primary disclosure and the stock already fell 1%.
J.B. Hunt posted Q3 EPS of $1.82 versus $1.89 expected, leading to a >2% after‑hours drop.
likely pressure as investors react to the earnings miss
First report of the miss; the stock already slid more than 2%.
Varonis Systems rose >2% after Proofpoint announced a $6.3 billion all‑cash acquisition of the company.
likely upside as the market prices in the premium acquisition offer
The deal is a fresh primary disclosure with a sizable cash premium.
Alcoa reported Q3 EPS of $1.82 (ex‑items) versus $1.47 expected, sending the stock up 2% after‑hours.
likely upside as investors reward the earnings beat
First report of the beat; the stock already rose 2%.
Market effects
Transportation and industrials see pressure from earnings misses; cybersecurity and aluminum benefit from positive news.
U.S. equities see mixed after‑hours movement across sectors.
Limited to U.S. listed companies; no broader macro impact.
Counterpoint
The earnings misses may be over‑reacted to; price could stabilize once broader market digests the results.
Key entities
- companyInteractive Brokers
Electronic brokerage firm
- companyJ.B. Hunt Transport Services
Freight and logistics provider
- companyVaronis Systems
Cybersecurity firm
- companyProofpoint
Acquirer of Varonis
- companyAlcoa
Aluminum producer


