Biggest Small-Cap Gaps September 2, 2026: Float and Dilution Sourced

Direct answer: On September 2, 2026, three small-caps posted notable intraday moves. PPBT (Purple Biotech) +69% with a float of 1.63 million shares and volume of 38.9 million. LHAI (Linkhome Holdings) +57% with a 16.53M float and 37M volume. GPUS (Hyperscale Data) +25% with a 92.32M float and 74.3M volume. These spreads illustrate the mechanics of low-float small-caps: volume that vastly exceeds the float mechanically amplifies volatility. No specific catalyst is established here for these moves; the numbers are pulled from the FloatVerify database and reflect the session's trading data.

PPBT: +69% intraday, a 1.63M float against 38.9M volume

Purple Biotech Ltd. (PPBT) gapped open +44% from the prior close. The intraday peak? +69%. Closed at $1.971. The official float recorded in the FloatVerify database: 1.63 million shares. Volume traded: 38,993,321 shares.

Do the math. Volume represents 23.9 times the float (38.9M ÷ 1.63M). Every share available for public trading changed hands an average of 24 times during the day. This massive turnover creates intense buying pressure if buy orders dominate—or an equally swift drop if selling pressure takes over. The small float acts as a mechanical lever on volatility. The fewer shares available, the faster the supply-demand balance tips.

On a gapping small-cap, you often see this pattern: pre-market euphoria pushes the price up, then profit-taking or the absence of a clear catalyst pulls it back down. PPBT held its gain all session. That doesn't always happen.

What we don't know here: No specific catalyst is provided in the session data. No clinical announcement, no partnership, no identified press release. The move could stem from a pre-market event, social media buzz, or a short squeeze (when short sellers buy back shares en masse to cover their positions). The absence of an established cause doesn't diminish the measured fact: the stock did move +69% intraday with a 1.63M float.

Short Sale Restriction (SSR): With a move like this, PPBT likely triggered the SSR rule (circuit breaker), which prohibits short selling at the bid price if a stock drops 10% or more intraday from the prior close. This rule, defined by the SEC's Regulation SHO, can limit short selling pressure and temporarily amplify bounces.

LHAI: +57% intraday, a 16.53M float and 37M volume

Linkhome Holdings Inc. (LHAI) gapped open +49%, then hit an intraday peak of +57%. Closed at $1.095. Float: 16.53 million shares. Volume: 37,044,291 shares traded in the session.

Volume represents 2.2 times the float (37M ÷ 16.53M). Less dramatic than PPBT, but still high turnover: every floating share changed hands an average of 2.2 times. On a small-cap trading at $1.095, that kind of turnover is enough to create marked volatility, especially if the opening gap (+49%) drew the attention of intraday traders.

A +49% gap means the price jumped before the regular session even opened (9:30 a.m. ET), during the pre-market phase. Buy orders piled up, pushing the equilibrium price well above the prior close. This type of gap often attracts momentum traders, who buy hoping the move continues, and day traders, who try to capture a slice of intraday volatility. The high volume reflects that activity.

Where to read LHAI's float: The 16.53M float is a dated number, pulled from the most recent available SEC filings (Forms 10-Q, 10-K, or DEF 14A). This number changes with every dilution: if Linkhome Holdings issues new shares (public offering, warrant conversion, stock option exercise), the float rises and the capital structure changes. A float that goes from 16.53M to 30M or 50M after a dilutive offering mechanically reduces relative volatility for the same volume. Conversely, a share buyback reduces the float and amplifies volatility.

GPUS: +25% intraday, a 92.32M float and 74.3M volume

Hyperscale Data, Inc. (GPUS) gapped open +64%—the highest gap of the three stocks presented here. Then the stock finished the session at +25% intraday, at a price of $0.1984. Float: 92.32 million shares. Volume: 74,337,100 shares.

Volume represents 0.8 times the float (74.3M ÷ 92.32M). Nearly 80% of floating shares changed hands in the session. That's substantial turnover, but less explosive than PPBT (23.9x) or LHAI (2.2x). The closing price of $0.1984 puts GPUS in penny stock territory (< $1), where percentage volatility can run high even on small moves measured in cents.

GPUS gapped +64% but closed at only +25% intraday. The stock retreated significantly from its opening peak. This pattern—big gap, then pullback—is common on small-caps: pre-market euphoria pushes the price up, then profit-taking or the absence of a clear catalyst brings it back down. The 74.3M volume reflects the battle between buyers and sellers all session long.

Float and dilution: A float of 92.32M is relatively high for a small-cap, which mechanically reduces the size of moves for a given volume (compared to PPBT and its 1.63M). But at $0.1984, total float market cap is only $18.3 million (92.32M × $0.1984), which puts GPUS squarely in micro-cap territory. Dilution is a structural risk for this type of stock: if Hyperscale Data issues 50M additional shares to raise capital, the float rises to 142M and relative volatility drops.

Common mechanics

Here's the summary table:

Feature	PPBT	LHAI	GPUS
Max intraday move	+69%	+57%	+25%
Opening gap	+44%	+49%	+64%
Float (millions)	1.63	16.53	92.32
Volume (millions)	38.99	37.04	74.34
Volume/float ratio	23.9x	2.2x	0.8x
Closing price ($)	1.971	1.095	0.1984

PPBT and LHAI show volume far exceeding the float. Extreme turnover. Each floating share changes hands multiple times, which mechanically amplifies volatility. GPUS, with a 0.8x ratio, stays in high turnover territory but less spectacular.

All three stocks gapped hard (+44% to +64%), but only PPBT and LHAI held a significant portion of that gain by session close (+69% and +57%). GPUS gave back much of its gap, finishing at +25%. This pattern illustrates the difference between pre-market euphoria (accumulated buy orders) and regular-session reality (profit-taking, supply-demand rebalancing).

Short Sale Restriction (SSR): All three stocks likely triggered the SSR rule at some point in the session, either on the upside (if a 10% intraday pullback occurred) or downside. SSR prevents short sellers from placing orders at the bid price, which can temporarily limit selling pressure and amplify bounces. This rule, defined by Regulation SHO, applies for the rest of the current session and the following session if triggered.

How the float evolves and where to read it

The float is the number of shares available for public trading, after excluding insider holdings (executives, employees, founders with lock-ups), shares held by venture capital funds under restriction periods, and treasury stock. This number is found in SEC filings:

• Form 10-K (annual report): "Market for Registrant's Common Equity" section and outstanding shares table.
• Form 10-Q (quarterly report): updated outstanding shares as of quarter-end.
• Form 8-K (material event): announcement of immediate dilution (public offering, warrant conversion, option exercise).
• Form DEF 14A (proxy statement): insider holdings detail (beneficial ownership table).
• Forms S-1, S-3 (IPOs, public offerings): capital structure before/after the offering.

The float is a dated number. It changes with every dilution (new share issuance), buyback, warrant conversion, or stock option exercise. A small-cap that issues 20M additional shares via a public offering sees its float rise immediately, which reduces relative volatility for the same volume. Conversely, a share buyback reduces the float and amplifies volatility.

FloatVerify tracks these changes by updating the float with every relevant SEC filing, and displays source divergences (for example, a different float depending on whether certain warrant tranches are counted). This transparency avoids presenting a single falsely certain number.

Recap

Point	Takeaway
PPBT: +69% intraday	1.63M float, 38.9M volume (23.9x the float), +44% gap. Extreme turnover typical of micro-caps with tiny floats.
LHAI: +57% intraday	16.53M float, 37M volume (2.2x the float), +49% gap. High volatility held into the close.
GPUS: +25% intraday	92.32M float, 74.3M volume (0.8x the float), +64% gap but significant intraday pullback. Penny stock at $0.1984.
Core mechanism	Small float + high volume = amplified volatility. The fewer shares available, the faster the supply-demand balance tips.
Source of numbers	Floats, volume, and prices are pulled from the FloatVerify database, which compiles SEC filings and market data. Floats are dated and change with every dilution.
No predictions	FloatVerify describes what is, not what will be. A stock that rises 69% can fall just as fast. The float is a structural number, not a guarantee of performance.

FAQ

Which stocks had the biggest gaps on September 2, 2026?

On September 2, 2026, PPBT (Purple Biotech) recorded +69% intraday, LHAI (Linkhome Holdings) +57%, and GPUS (Hyperscale Data) +25%. These moves came with volume far exceeding their respective floats (38.9M vs. 1.63M for PPBT, 37M vs. 16.53M for LHAI, 74.3M vs. 92.32M for GPUS), typical of small-caps with low free float.

Why does a small float amplify volatility?

The float is the number of shares available for public trading. When trading volume far exceeds the float (for example, 38.9M volume against a 1.63M float at PPBT), each share changes hands multiple times in the session, creating intense buying or selling pressure that sends the price up or down rapidly. The fewer shares available, the faster the supply-demand balance tips.

Where do you find a small-cap's official float?

The float is calculated from SEC filings: Forms 10-K (annual report), 10-Q (quarterly), 8-K (material event), DEF 14A (proxy statement), and S-1/S-3 (IPOs and public offerings). These documents detail outstanding shares, insider holdings, and lock-ups. The float changes with every dilution, buyback, or warrant conversion.

What is an opening gap and why do some stocks gap hard?

An opening gap is the difference between the prior close and the next day's open. A gap of +44% (PPBT) or +64% (GPUS) means buy orders in pre-market pushed the price up before the regular session even opened. Small-caps with low floats often gap hard because it takes few shares to move the price, especially if a catalyst grabs attention.

Are these +50% to +69% moves sustainable?

FloatVerify makes no directional predictions. What we can say factually: small-caps with low floats and high volume show extreme volatility in both directions. A stock that rises 69% can fall just as fast if volume dries up or selling pressure reverses. The float is a structural number, not a guarantee of future performance.

Sources

Float, volume, and price figures come from the FloatVerify database, which compiles SEC filings and real-time market data. Primary sources include:

• SEC EDGAR (Electronic Data Gathering, Analysis, and Retrieval): sec.gov/edgar — Forms 10-K, 10-Q, 8-K, DEF 14A, S-1, S-3.
• Regulation SHO (Short Sale Rule): sec.gov/rules/final/34-50103.htm — definition of the SSR (Short Sale Restriction) rule.
• Form 10-K: audited annual report, "Capital Stock" and "Market for Registrant's Common Equity" sections.
• Form 10-Q: unaudited quarterly report, outstanding shares update.
• Form 8-K: material event report (public offering, dilution, warrant conversion).
• Form DEF 14A: proxy statement, insider holdings table (beneficial ownership).

Trading volumes and intraday prices are pulled from consolidated market data (consolidated tape). FloatVerify publishes only sourced and dated numbers, never projections or advice.

See the float, sourced and dated, on FloatVerify.

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FloatVerify shows the float, dilution and cash burn of US small-caps, every number sourced and dated — and surfaces divergences between sources ("source split") instead of one falsely certain figure.

Disclaimer: FloatVerify is a data tool, not an investment advisory service. Nothing here is a recommendation to buy or sell. Data, not advice.