Market Movers — June 15, 2026

The 100 most actively traded US stocks on June 15, 2026, ranked by volume — 55 up, 45 down. Here are the day's biggest moves and the headlines driving them.

The market take

SpaceX's successful IPO is casting a long shadow over smaller competitors in commercial space. AST SpaceMobile, Intuitive Machines, Redwire, and Rocket Lab all fell sharply despite some positive company-specific catalysts—ASTS on potential Japan satellite awards, RKLB on record launch plans—suggesting the market is repricing the entire subsector as SpaceX establishes dominance. The breadth remains tilted positive (55 up, 45 down), indicating selective strength elsewhere rather than broad enthusiasm.

Arm Holdings bucked the weakness with an 11.3% pop on a Bank of America upgrade and 37% price target increase, signaling renewed confidence in semiconductor supply chains and AI infrastructure. Rivian climbed 7.9% on an AT&T 5G partnership for its R2 platform, hinting at persistent appetite for EV-adjacent stories. POET Tech gained 11.4% despite lawsuit headlines, and CIFR rose 8.3% on geopolitical de-risking, suggesting defensive and sector-rotation moves are offsetting the space-stock selloff. Earnings pressure and single-name execution remain the watchword across growth names.

Analyst commentary generated from the day's data and headlines — not investment advice.

Biggest moves today

• ASTS (AST SpaceMobile, Inc.) ▼ -15.53% at $82.41 on 55.2M shares — ASTS Stock Jumps Overnight: Retail Eyes Potential Win As Japan's $1B 'Starlink' Award Nears Decision (Stocktwits)
• LUNR (Intuitive Machines, Inc.) ▼ -13.12% at $26.62 on 22.3M shares — SpaceX’s IPO Was Enormously Successful, but Did It Break the Rest of the Space Industry? (24/7 Wall St.)
• RDW (Redwire Corporation) ▼ -11.53% at $15.12 on 63.7M shares — Why Redwire Stock Plummeted This Week (Motley Fool)
• POET (POET Technologies Inc.) ▲ +11.38% at $12.53 on 34.2M shares — POET Technologies Lawsuits Heighten Legal Risk And Raise Disclosure Questions (Simply Wall St.)
• ARM (Arm Holdings plc) ▲ +11.27% at $380.81 on 16.5M shares — Arm Holdings (ARM) Gets BofA Backing, 37% PT Upgrade, Climbs 11% (Insider Monkey)
• SATS (EchoStar Corporation) ▼ -10.97% at $114.08 on 50.2M shares — EchoStar’s Spectrum Sales And New SpaceX Stake Reframe Investment Story (Simply Wall St.)
• RKLB (Rocket Lab Corporation) ▼ -10.79% at $102.39 on 63.4M shares — RKLB Stock Jumps Overnight: Rocket Lab Lines Up Record Launch Blitz After Nasdaq-100 Entry (Stocktwits)
• PL (Planet Labs PBC) ▼ -8.84% at $31.15 on 19.5M shares — Planet Labs Stock Plunged Following Its Recent Earnings Call. Should Investors Buy the Dip? (Motley Fool)
• CIFR (Cipher Digital Inc.) ▲ +8.26% at $24.50 on 26.2M shares — Cipher Digital (CIFR) Mimics Market Rally as US-Iran Tensions Subside (Insider Monkey)
• RIVN (Rivian Automotive, Inc.) ▲ +7.85% at $16.76 on 31.9M shares — Rivian AT&T 5G Deal Puts R2 Software And Valuation In Focus (Simply Wall St.)

Most active by volume

#	Ticker	Price	Change	Volume
1	AAL	$14.98	+2.25%	153.4M
2	INTC	$124.57	+6.51%	151.5M
3	NOK	$14.80	+5.04%	110.8M
4	NVDA	$205.19	+0.16%	112.3M
5	SMCI	$30.46	-4.72%	84.2M
6	RDW	$15.12	-11.53%	63.7M
7	TSLA	$406.43	+1.82%	63.7M
8	RKLB	$102.39	-10.79%	63.4M
9	ONDS	$9.33	-5.09%	55.4M
10	ASTS	$82.41	-15.53%	55.2M
11	KEEL	$5.59	+1.27%	54.8M
12	AMZN	$238.55	-1.23%	51.3M
13	GRAB	$3.30	-1.49%	50.5M
14	SOFI	$16.58	-0.54%	50.5M
15	SATS	$114.08	-10.97%	50.2M
16	PLUG	$2.76	-2.47%	49.7M
17	IREN	$59.77	+5.40%	45.5M
18	F	$14.84	+0.88%	32.7M
19	MRVL	$279.70	-0.36%	42.2M
20	AUR	$6.13	+2.68%	41.9M
21	MARA	$14.08	+3.45%	41.8M
22	MU	$981.61	-1.43%	41.0M
23	PATH	$10.55	-0.94%	40.7M
24	T	$23.58	+2.52%	32.9M
25	CPNG	$16.82	-2.49%	32.8M

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Market data from Yahoo Finance; insider data from SEC EDGAR Form 4. For research only — not investment advice. Verify on the official source before trading.