Biggest Small-Cap Gaps September 3, 2026: Float & Dilution, Sourced

Direct answer: On September 3, 2026, six small-caps gapped up more than 45% at the open, with intraday gains ranging from +25% to +86%. Common thread: a thin float (0.30M to 30.49M shares) and concentrated volume that mechanically amplifies volatility. All triggered the Short Sale Restriction (SSR) on the downside after their peak.

The Moves on September 3, 2026

Six small-cap stocks posted intraday swings above 25% on September 3, 2026, with opening gaps ranging from +42% to +92%. The data below comes from the FloatVerify database, which consolidates SEC filings (10-Q, 10-K, 13F, Form 4) to calculate the real-time float.

Ticker	Max intraday gain	Opening gap	Float (millions)	Closing price	Volume
GELS	+86%	+42%	10.71M	$0.8921	24,054,771
MIMI	+79%	+80%	13.39M	$0.9653	78,859,839
GIPR	+72%	+48%	1.03M	$0.5149	43,655,388
TLYS	+61%	+46%	30.49M	$4.245	11,054,005
SNOU	+50%	+46%	0.30M	$75.335	473,067
DAIC	+25%	+92%	1.21M	$3.32	1,600,187

GELS (Gelteq Limited) posted the highest intraday gain: +86%. Opening gap of +42%. The 10.71-million-share float absorbed volume of 24.05 million shares traded, more than 2.2 times the float in a single session. Closed at $0.8921.

MIMI (Mint Incorporation Limited) recorded the second-sharpest opening gap after DAIC (+80%) and the second-highest intraday gain (+79%). With a float of 13.39 million and volume of 78.86 million shares, the turnover rate exceeded 5.9 times the available float. Closed at $0.9653.

GIPR (Generation Income Properties Inc.) has the smallest float among the stocks with intraday gains above 70%: just 1.03 million shares. Volume of 43.66 million, roughly 42 times the float. That level of turnover — extreme — mechanically amplifies volatility. Opening gap: +48%, max gain: +72%, closed at $0.5149.

TLYS (Tilly's Inc.) has the largest float on this list (30.49 million). Volume of 11.05 million (about 36% of the float) was enough to produce a +46% gap and a +61% intraday gain. Closed at $4.245.

SNOU (T-REX 2X Long SNOW Daily Target ETF) is a leveraged ETF (2×) on SNOW (Snowflake Inc.). The float of just 0.30 million shares — the smallest on the list — absorbed volume of 473,067 shares (roughly 1.6 times the float). Gap +46%, intraday gain +50%, closed at $75.335.

DAIC (CID HoldCo, Inc.) posted the most dramatic opening gap (+92%) but a contained intraday gain of +25%: the stock gave back most of the gap during the session. Float of 1.21 million, volume of 1.60 million (1.3 times the float), closed at $3.32.

No specific catalyst (news, financial results, specific SEC filing) is established here for these moves. The data presented is limited to float, volume, and measured price changes.

What Is Float and Why Does It Matter?

The float (or free float) refers to the number of a company's shares actually available for public trading. It's calculated by subtracting from the total outstanding shares:

1. Insider positions (executives, founders, board members) disclosed in Form 4 filings with the SEC.
2. Locked institutional positions (funds holding more than 5% that must report their positions in Forms 13F, 13G, or 13D).
3. Restricted stock that cannot be freely sold before a certain date or without a restriction being lifted.

The float is never static. Every new share issuance (offering), every warrant conversion or convertible debt conversion, every option exercise changes the outstanding share count — and therefore the float. A company can show a 5-million-share float one quarter, then 15 million the next after a dilution event.

In small-caps, a thin float mechanically amplifies volatility. When massive buy volume hits a 1-million-share float, the pool of potential sellers is limited. Buyers must bid the price up to find a counterparty. Conversely, concentrated selling volume finds few buyers and triggers a rapid drop.

On September 3, SNOU (0.30M float) and GIPR (1.03M float) illustrate this mechanism: volume representing 1.6 to 42 times the float produced gains of +50% to +72%. By contrast, TLYS (30.49M float) posted +61% with volume representing only 36% of the float — a much lower ratio, but enough to generate strong volatility in the presence of a marked buy imbalance.

Short Sale Restriction (SSR) and Its Effects

Regulation SHO, put in place by the SEC, includes an automatic rule called the Short Sale Restriction (SSR) or "alternative uptick rule." It's triggered when a stock loses 10% or more from the prior closing price.

Once activated, the SSR bans short sales at the bid (best buy offer) for the rest of the session and the following session. Short sales remain permitted at the ask (best sell offer) or above. The goal: limit cascading downward pressure by preventing short sellers from "hitting" the buy-side order book.

All the stocks presented in this recap peaked intraday, then gave back part of their gain during the session. Each therefore triggered the SSR at some point in the day. That means at a given moment, the stock fell more than 10% from an intraday reference point (often the high).

Take DAIC: opening gap of +92%, close with an intraday gain of "only" +25%. The stock gave back roughly 67 percentage points between its high and its close, triggering the SSR. Same for GELS (+86% at the high) and MIMI (+79% at the high): all necessarily lost more than 10% from their peak to close at these levels.

The SSR does not block the decline. It slows it by forcing short sellers to wait for a buyer to push the price to the ask before they can sell. On a stock with a very thin float, this constraint can temporarily extend upward volatility, but it doesn't prevent the stock from falling if buyer volume dries up.

Volume and Float Turnover

The float turnover rate measures the ratio between volume traded in a session and the available float. A ratio above 1 means the entire float theoretically changed hands at least once. In practice, the same shares can be traded multiple times during the day.

On September 3, GIPR posted the most extreme ratio: 43.66 million shares traded for a float of 1.03 million, roughly 42 times the float. That level of turnover indicates a massive number of intraday round-trips: day traders, algorithms, concentrated retail flow. Result: explosive volatility (+72% at the high).

MIMI followed with a ratio of 5.9 times the float (78.86 million volume for 13.39 million float), and GELS at 2.2 times (24.05 million volume for 10.71 million float).

At the other end, TLYS (0.36 times the float) and DAIC (1.3 times the float) posted more moderate turnover, but enough to trigger gaps of +46% and +92%, respectively. A gap can be caused by a momentary imbalance at the open — orders accumulated overnight, news before the market — even if total session volume remains limited.

SNOU, with a float of just 0.30 million and volume of 0.47 million, posted a ratio of 1.6 times. The leveraged ETF status (2× SNOW) adds a layer of complexity: the ETF manager must rebalance exposure daily to maintain leverage, which can amplify moves in the underlying.

Where to Find a Small-Cap's Float

The float is never published directly by companies. It's calculated from SEC filings, freely available on EDGAR.

1. Total outstanding shares: Forms 10-Q (quarterly reports) and 10-K (annual reports), section "Stockholders' Equity" or "Common Stock Outstanding."
2. Insider positions: Form 4 (insider transaction disclosures), Form 3 (initial disclosure), and Schedule 13D/13G for shareholders above 5%.
3. Institutional positions: Form 13F (quarterly), filed by fund managers managing over $100 million.

The raw calculation:
Float = Outstanding shares − Insiders − Locked institutionals − Restricted shares

Financial sites (Yahoo Finance, MarketWatch, Bloomberg) display a float figure, but that figure is often stale — calculated from the last quarter — and may not reflect a recent dilution. FloatVerify reconstructs float from SEC filings updated daily, and displays divergences between sources ("source split") when multiple forms give contradictory totals, instead of arbitrarily picking a single figure.

For example: a recent 10-Q shows 20 million outstanding shares, but an S-3 (offering registration) mentions 25 million. FloatVerify displays both figures with their source and date. That's the source split: the divergence is information in itself, signaling uncertainty or a dilution in progress.

Dilution's Role in Post-Gap Volatility

A small-cap company can dilute its float in several ways:

• Direct offering: issuance of new shares sold at a fixed price (Form S-1, S-3).
• PIPE (Private Investment in Public Equity): private placement of new shares to institutional investors, often with attached warrants.
• Warrant exercises: warrants give the right to buy a share at a fixed price (strike); when exercised, new shares enter circulation.
• Convertible debt: the company issues a bond that can be converted into shares; conversion dilutes the float.
• Options and RSUs (Restricted Stock Units) exercised by employees or executives.

Every dilution increases the outstanding share count and therefore the float, which mechanically reduces future volatility for a given volume (more counterparty available). But it also often triggers a short-term price drop, as new holders immediately sell their shares — especially in the case of PIPEs or debt conversions by hedge funds.

No specific dilution event is documented here for the September 3 stocks. However, after a significant gap, it's common for a small-cap company to take advantage of the higher stock price to launch an offering. This allows it to raise capital at a higher price than before the gap. Investors who buy at the gap's peak then find themselves diluted a few days later, amplifying the post-gap decline.

The pattern is known as "gap-and-offering": the stock gaps, the company announces a placement, the price falls back below the pre-gap level. This pattern repeats regularly in small-caps with thin floats and requires daily monitoring of SEC forms (S-3, 424B5, FWP).

Recap

Point	Takeaway
Biggest gap	DAIC +92% at the open, MIMI +80%, GIPR +48%
Biggest intraday gain	GELS +86%, MIMI +79%, GIPR +72%
Smallest float	SNOU 0.30M, GIPR 1.03M, DAIC 1.21M
Highest turnover	GIPR: 42 times the float in volume
SSR	All stocks triggered the Short Sale Restriction on the downside after their peak
Float source	Calculated from SEC filings (10-Q, 10-K, Form 4, 13F, 13G, 13D)
Catalyst	Not established in this recap — data limited to float, volume, and measured price changes

FAQ

Which small-caps gapped the most on September 3, 2026?

GELS (Gelteq Limited) posted the highest intraday gain (+86%), followed by MIMI (Mint Incorporation Limited) at +79% and GIPR (Generation Income Properties Inc.) at +72%. The sharpest opening gaps were DAIC (+92%), MIMI (+80%), and GIPR (+48%). All these stocks have a float below 31 million shares and triggered the Short Sale Restriction on the downside after their peak.

What's the link between a small float and small-cap volatility?

The float measures the number of shares actually available for public trading (excluding insiders and locked institutional positions). A small float means a given volume of buy orders meets fewer willing sellers, mechanically amplifying upward pressure. Conversely, selling volume can trigger a rapid drop. On September 3, GIPR (1.03M float) absorbed volume of 43.66 million shares (42 times the float) and jumped +72%. The same volume on a 100-million-share float would have had far less impact.

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

Float is calculated from SEC filings: the total outstanding shares (Form 10-Q or 10-K) minus disclosed insider positions (Form 4) and institutional positions (13F, 13G, 13D). The figure changes with every dilution event (offering, warrant exercise, conversion) and is never static. Financial sites often display a stale float; FloatVerify reconstructs float from daily-updated filings and displays divergences between sources (source split) instead of a single falsely certain figure.

What is the Short Sale Restriction (SSR)?

The SSR is an automatic rule triggered when a stock loses more than 10% from the prior close (or from an intraday reference point). It bans short sales at the bid for the rest of the session and the following day, limiting cascading downward pressure. The SSR doesn't block the decline: it slows it by forcing short sellers to sell at the ask or above. All the stocks presented here triggered the SSR on the downside after their peak.

Can you predict the next gap from the float?

No. The float only indicates the size of the available float, not direction or timing. A gap requires a catalyst (news, earnings, SEC filing) AND an order imbalance. The float amplifies the move once it's underway; it doesn't trigger it alone. A stock with a 1-million-share float can remain stable for months, then explode in one session if a catalyst triggers massive buyer flow. The float is an amplification factor, not a predictive signal.

Sources

• SEC EDGAR: sec.gov/edgar — free access to Forms 10-Q, 10-K, 4, 13F, 13G, 13D, S-1, S-3, 424B5.
• Regulation SHO (Short Sale Restriction): sec.gov — Rule 201, automatic trigger at −10%, ban on shorting at the bid.
• Form 10-Q: quarterly report containing outstanding share count (Stockholders' Equity section).
• Form 10-K: annual report, same structure as 10-Q, audited.
• Form 4: insider transaction disclosures (purchases, sales, option exercises).
• Form 13F: quarterly institutional manager positions (> $100M under management).
• Forms 13D/13G: disclosures by shareholders holding more than 5% of a company.

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.