Market Movers — June 18, 2026

The 100 most actively traded US stocks on June 18, 2026, ranked by volume — 29 up, 71 down. Here are the day's biggest moves and the headlines driving them.

The market take

The market's extreme breadth deterioration—71 decliners to 29 gainers among the top 100 most active—masks a handful of sharp single-stock rallies driven by genuine catalysts. UniQure's 78% surge on AMT-130 progress signals investor appetite for gene-therapy breakthroughs, while Eos Energy's 11.6% jump reflects real infrastructure tailwinds tied to European battery expansion. USA Rare Earth's 8.3% rise aligns with G7 coordination on critical minerals, a macro theme gaining traction as supply-chain resilience becomes policy priority.

Elsewhere, sectoral weakness is evident. Snap cratered 8.1% as its AR glasses launch disappointed the market, while Opendoor tumbled 6.3% on job cuts and geographic retreat—a sign that consumer tech and real estate are under pressure. The Robinhood paradox is noteworthy: despite surging 36% this month, Cathie Wood's ARK fund dumped $26.7M of the position, suggesting algorithmic profit-taking or rebalancing rather than a conviction hold. Retail trading momentum appears selective and fragile.

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

Biggest moves today

• QURE (uniQure N.V.) ▲ +78.44% at $48.16 on 19.6M shares — UniQure (QURE) Soars 78% on AMT-130 Progress (Insider Monkey)
• EOSE (Eos Energy Enterprises, Inc.) ▲ +11.60% at $7.60 on 47.1M shares — Eos Energy (EOSE) Rockets 11.6% on European Expansion (Insider Monkey)
• FRMI (Fermi Inc.) ▲ +9.90% at $8.66 on 39.1M shares — Fermi (FRMI) Climbs 9.9% Further on Lingering OpenAI Buzz (Insider Monkey)
• HOOD (Robinhood Markets, Inc.) ▲ +8.78% at $105.20 on 70.3M shares — Cathie Wood's ARK Dumps Another $26.7M Of Robinhood Despite HOOD Stock’s 36% Monthly Surge (Stocktwits)
• USAR (USA Rare Earth, Inc.) ▲ +8.33% at $23.55 on 19.5M shares — USA Rare Earth (USAR) Gets 8% Boost as G7 Unites on Critical Metals Devt (Insider Monkey)
• SNAP (Snap Inc.) ▼ -8.14% at $4.74 on 71.4M shares — SNAP Stock Falls For Second Day After Costly AR Glasses Launch: Analyst Can't See Demand Clearly But Spots 'Patent Value' At Minimum (Stocktwits)
• AMC (AMC Entertainment Holdings, Inc) ▲ +6.83% at $2.66 on 68.4M shares — This Monthly Dividend Powerhouse Is Trading at a Bargain-Bin Valuation (Barchart)
• CDE (Coeur Mining, Inc.) ▼ -6.71% at $17.53 on 39.0M shares — Here’s Why Scotiabank Resumed Coverage Of Coeur Mining (CDE) With “Outperform” Rating And $27.50 PT (Insider Monkey)
• RDW (Redwire Corporation) ▲ +6.37% at $14.36 on 32.9M shares — Redwire vs. Rocket Lab: Which Space Stock Is a Better Buy in 2026? (Motley Fool)
• OPEN (Opendoor Technologies Inc) ▼ -6.32% at $4.45 on 41.4M shares — Real estate tech firm exits key hub, cuts 100s of jobs (TheStreet)

Most active by volume

#	Ticker	Price	Change	Volume
1	SPCX	$191.82	-4.95%	196.4M
2	AAL	$15.42	-1.85%	129.9M
3	SOFI	$17.42	-1.64%	119.3M
4	NOK	$13.83	-1.07%	102.6M
5	NVDA	$204.65	-1.33%	118.6M
6	INTC	$121.10	+3.46%	111.1M
7	NU	$12.89	+1.34%	88.7M
8	PLUG	$2.65	-2.21%	79.0M
9	SNAP	$4.74	-8.14%	71.4M
10	HOOD	$105.20	+8.78%	70.3M
11	AMC	$2.66	+6.83%	68.4M
12	KEEL	$5.97	+0.17%	65.5M
13	SMCI	$27.78	-4.93%	53.0M
14	ONDS	$9.12	-0.98%	48.6M
15	T	$22.44	-3.11%	48.4M
16	EOSE	$7.60	+11.60%	47.1M
17	GRAB	$3.45	-1.15%	46.0M
18	TE	$9.04	+4.75%	45.3M
19	MRVL	$289.54	+3.90%	48.6M
20	ACHR	$5.36	-1.47%	43.8M
21	NFLX	$76.96	-2.24%	50.0M
22	RKT	$13.22	-5.03%	43.2M
23	SMR	$10.34	+4.55%	47.5M
24	MU	$1043.19	+2.20%	44.0M
25	OPEN	$4.45	-6.32%	41.4M

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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.