CTOS · Custom Truck One Source, Inc.

The thesis

Custom Truck One Source rents and sells specialty trucks and utility equipment. Its August guidance increase still supports the rental case, but the shares have moved the wrong way: the adjusted close was $8.87 on 22 October 2026, below the $9.00 level the prior note treated as the floor, and 25.9% under the 52-week high of $11.97. The Q3 report, expected in the last days of October or early November and not yet dated by the company, settles whether 2026 guidance holds.

The narrative is maturing: the utility-grid equipment story is well known, the 3 August 2026 report established the demand case, and the shares have fallen since. The three-month price change is −17.2%, against −12.5% on 9 October 2026. The 14-day relative strength index (RSI, a 0–100 momentum gauge) was 31.9 on 22 October 2026, from 47.7 on 9 October 2026 and 55.3 on 25 September 2026. No new earnings release or company filing has appeared since the prior note, so the decline reflects price action ahead of the report and not new company news.

Bullish and bearish views on Custom Truck One Source, Inc.

The bull case on Custom Truck One Source, Inc. (CTOS), in brief: Rental demand is measurable. The bear case: A weekly close back above $10.00, the level that marked the June–July advance, would weaken this objection.

Bull case

• Rental demand is measurable. Fleet utilization reached 81.6% in the quarter ended 30 June 2026, up 400 basis points (4.0 percentage points) year over year, per the Q2 2026 earnings release dated 3 August 2026. A Q3 reading below 78% would contradict this.
• Management raised the annual outlook. On 3 August 2026 the company lifted 2026 revenue guidance to $2.10–$2.20 billion and Adjusted EBITDA (earnings before interest, taxes, depreciation and amortization, adjusted) guidance to $437.5–$455 million. A cut below the $437.5 million floor would reverse this.
• Earnings grew faster than sales. Q2 2026 revenue was $563.4 million, up 10.2% year over year, while Adjusted EBITDA was $116.8 million, up 25.0% (Q2 2026 earnings release, 3 August 2026).
• Price sits far below analyst targets. Fintel's average one-year target was $13.60 as of 28 August 2026, with a range of about $12.12 to $15.75. Those targets predate the October decline, so they carry less weight until analysts update after the Q3 report.

Bear case

• A weekly close back above $10.00, the level that marked the June–July advance, would weaken this objection.
• Management guided Q3 lower than Q2. On the 4 August 2026 earnings call, CFO Chris Eperjesy said Q3 revenue and Adjusted EBITDA should rise year over year but come in modestly below Q2. A sequential decline would match that outlook; a guidance cut would not.
• Leverage leaves little room. Net leverage was 3.85 times at 30 June 2026, with $1,673.2 million of total debt and $10.3 million of cash (Q2 2026 results). Net leverage above 4.0 times in Q3 would undercut the deleveraging argument.
• Controlling-holder supply is a standing overhang. Platinum Equity controls the company, and any registered sale into a thin float would pressure the shares.

Price setup

The reference close is $8.87 on 22 October 2026 (split- and dividend-adjusted daily closes). The 52-week high is $11.97, and the shares sit 25.9% below it. The RSI of 31.9 is near the 30 level that momentum traders call oversold, which describes the speed of the decline and says nothing about when it ends.

The broken $9.00 level is now the nearest overhead marker, with $10.00 above it. A daily close below $8.40 would extend the slide and end the case as written.

Crowding evidence is thin. There is no wide gap above a rising moving average, no insider filing and no share issuance in company news. The imminent Q3 report is the main event risk, and the company had not announced its date as of 23 October 2026.

Catalysts, next 30 days

No upcoming dated catalysts on file — the dated entries below have passed.

Elapsed catalysts

• ~27 October 2026, est.: Q3 2026 results and call. The date is unconfirmed. The Q3 2025 release came after the close on 27 October 2025, with the call the next morning, and the Q2 2026 release followed the same Monday-after-close pattern on 3 August 2026. (passed 10d ago)
• ~3 November 2026, est.: later possible reporting window. A slip into November would leave the shares without new operating data for another week. (passed 3d ago)

What would change the view

The case breaks if the Q3 report cuts 2026 Adjusted EBITDA guidance below $437.5 million, reports fleet utilization under 78%, or shows net leverage above 4.0 times. A daily close below $8.40 would show the market selling through the broken $9.00 level without waiting for results.

The case strengthens if the report holds guidance and utilization near the 81.6% Q2 reading, and a weekly close above $10.00 follows. Until then the operating evidence is positive and the price evidence is negative.

What it trades with

Custom Truck's results depend on utility, grid and infrastructure spending and on the cycle in used and new specialty-truck sales. The shares trade with cyclical industrial and equipment-rental names more than with mega-cap technology. Leverage of 3.85 times makes the stock sensitive to interest-rate moves and credit conditions. Platinum Equity's control limits the free float, which can widen price moves on small volume.