$AAOI
Applied Optoelectronics, Inc.
XNAS•Technology•Semiconductors & Related Devices
Why is AAOI up today? It is at $128.40 (+5.08%), and our scanner flagged it 556 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment AAOI spikes, and full due diligence on AAOI — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $128.40
- Change today
- +5.08%
- Previous close
- $122.19
- 52-week range
- $18.50 – $233.67
- Market cap
- $11.11B
- Institutional own.
- 67.53%
- Total held
- 71.1%
- Tradeable float
- 24.4M 29% of shares · after 4% insiders + 68% institutions
- Short interest
- 10.4M ▲ +5% vs prior · as of 2026-07-31
- Short % of float
- 42.7%
- Days to cover
- 1.2d
- Avg daily volume
- 8.7M
- Sector
- Technology
- Industry
- Semiconductors & Related Devices
- Exchange
- XNAS
- 5m
- 0.6x
- 15m
- 0.5x
- 1h
- 0.6x
- 1D
- 0.6x
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Why is $AAOI up today?
AAOI is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 10 unusual-volume and momentum alerts on AAOI today, peaking at 10.4x its normal volume.
Likely catalystAPPLIED OPTOELECTRONICS, INC.: Q2 FY2026 results, three months to Jun 30, 2026, from an SEC filing. Read it →Latest filing4Insider trade (Form 4)Aug 20, 2026 · todayAnalyst data via Nasdaq. Not investment advice.
From the trading subreddits (WallStreetBets, r/stocks and more). Retail chatter, not a signal. Do your own research.
Insiders
8 buys, 27 sells last 3 months (18/79 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Murry Stefan J. Officer | Sold (automatic/other) | -4K | sold 1.1% | 371K | $579K at $144.79 | Aug 10, 26 |
Yeh Shu-Hua (Joshua) Officer | Sold (automatic/other) | -5K | sold 1.2% | 383K | $596K at $126.50 | Aug 4, 26 |
Lin Chih-Hsiang (Thompson) Officer | Acquired (grant/award) | +9K 0.01% of company | added 0.7% | 1.30M | n/a | Jul 31, 26 |
Yeh Shu-Hua (Joshua) Officer | Sold (automatic/other) | -5K | sold 1.2% | 388K | $562K at $119.26 | Jul 22, 26 |
Lin Chih-Hsiang (Thompson) Officer | Sold (automatic/other) | -16K 0.02% of company | sold 1.2% | 1.29M | $1.9M at $119.26 | Jul 22, 26 |
Chang Hung-Lun (Fred) Officer | Sold (automatic/other) | -5K | sold 1.6% | 280K | $558K at $119.26 | Jul 22, 26 |
Murry Stefan J. Officer | Sold (automatic/other) | -5K | sold 1.4% | 375K | $645K at $119.26 | Jul 22, 26 |
Kuo David C Officer | Sold (automatic/other) | -3K | sold 2.2% | 146K | $389K at $119.26 | Jul 22, 26 |
Yeh Shu-Hua (Joshua) Officer | Sold (automatic/other) | -1K | sold 0.3% | 393K | $154K at $120.02 | Jul 21, 26 |
Murry Stefan J. Officer | Sold (automatic/other) | -4K | sold 1.0% | 381K | $488K at $122.09 | Jul 10, 26 |
Yeh Shu-Hua (Joshua) Officer | Sold (automatic/other) | -6K | sold 1.5% | 394K | $1.0M at $171.89 | Jun 18, 26 |
Chang Hung-Lun (Fred) Officer | Sold (automatic/other) | -40K 0.05% of company | sold 12% | 286K | $6.9M at $170.60 | Jun 17, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
Dilution watch
Recent offeringAt-the-market (ATM) offering active — the company can keep selling new shares into the market over time (ongoing). If $AAOI runs, these filings show who may be positioned to sell new or newly-registered shares into the move.
- 2,689,377 new shares · At-the-market (ATM) program — sells new shares into the market gradually over time · About $600.0M in size · Priced at $223.1/share
Sourced from SEC EDGAR filings (last 9 months); terms read straight from the filing text where available. Ongoing = an at-the-market (ATM) program still selling over time or a live shelf, so it can keep diluting; Completed = a one-time priced sale that already finished. A shelf (S-3) stays effective ~3 years. Form type signals dilution capacity, not an exact share count, and we can't confirm how much of a shelf or ATM remains unused. Not investment advice.
$AAOI Sentiment
BullishBlend of news sentiment, today’s move, and community votes. Not investment advice.
$AAOI Activity
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AAOI stock FAQ
Why is $AAOI up today?
AAOI is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 10 unusual-volume and momentum alerts on AAOI today, peaking at 10.4x its normal volume.
What is the AAOI stock price today?
AAOI last traded at $128.40, up 5.08% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live AAOI alerts?
The AAOI Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged AAOI 556 times in the last 30 days.
What exchange is AAOI on?
AAOI (Applied Optoelectronics, Inc.) trades on XNAS, with a market cap of about $11.11B in the SEMICONDUCTORS & RELATED DEVICES sector.
Is AAOI good for day trading?
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge AAOI for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.