Storm First Appearance: Giant-Size X-Men #1 Value by Grade

Storm first appeared in Giant-Size X-Men #1 (cover date May 1975), published by Marvel, by Len Wein, Dave Cockrum. The source puts it this way: "This comic introduced a new, diverse X-men lineup, which now included Storm, Colossus, Nightcrawler, Thunderbird and Wolverine.".

PriceCharting values for Giant-Size X-Men #1 (1975) by CGC grade, based on recorded sales and updated September 25, 2026:

• CGC 2.0: $1,000
• CGC 3.0: $1,288
• CGC 4.0: $1,337
• CGC 5.0: $1,813
• CGC 6.0: $2,159
• CGC 7.0: $2,426
• CGC 8.0: $3,334
• CGC 9.0: $4,347
• CGC 9.2: $4,840
• CGC 9.4: $5,440

The spread from CGC 2.0 ($1,000) to CGC 9.4 ($5,440) shows how much condition matters on a key issue. Restored, trimmed or incomplete copies sell far below these figures, and reprints and facsimiles (see below) are worth a small fraction. Grade and restoration are confirmed by a grading service such as CGC or CBCS; prices move with the market and the character's popularity.

• Cover date on CGC census record: CGC's census record lists the cover date as Summer 1975.
• Creator credits (writer/artist): created by writer Len Wein and artist Dave Cockrum, Storm first appeared in Giant-Size X-Men #1 (May 1975).

• Indicia: the small print on the first page or inside cover gives the issue number, date and publisher; reprints usually say so there.
• Cover price and barcode: a price or barcode format that did not exist in the year printed means a later edition.
• Paper and staples: decades-old newsprint is tan at the edges; bright white pages on an old date are a warning sign.
• Restoration: color touch, trimmed edges and married covers are common on expensive keys; a grading service can detect them.

Shoot the front cover flat, straight on, in even light, then the indicia page and the back cover. Include the top edge and staples in one frame. The app reads the title, issue number and cover and matches it against the checks above; the indicia photo settles most reprint questions.