MEDIA IMPACT STUDY · VENOM (2018)
Amazing Spider-Man #300
CGC 9.8 NM/M · Universal · Direct Edition · Marvel Comics, 1988
When Venom got his own movie,
what happened to his key comic?
A transaction-level look at Amazing Spider-Man #300 CGC 9.8 Direct Edition before, during, and after Sony's 2018 Venom film cycle.
01 / THE STUDY TIMELINE
The largest move came before opening weekend.
Recorded GPA sales for the selected Direct Edition category, with film milestones overlaid on monthly medians.
Dots retain recorded sale dates. Monthly medians sit at mid-month; connecting lines do not estimate daily prices. Lines connect observed medians across periods with no sales; no values are calculated for those empty periods. Bars show recorded transactions per period. Scroll horizontally on smaller screens.
Sep 2016–Feb 2017 median 29 sales
October 2018 median 10 sales
October 2019 median 8 sales
October 2018 vs. pre-film baseline Descriptive comparison
WHAT THE SALES SHOW
A rising market met a major film cycle.
The selected 9.8 Direct Edition was already moving higher before Sony announced Tom Hardy as Eddie Brock. The event windows let us separate the casting, teaser, trailer and theatrical-release moments rather than treating all of 2018 as one event.
The chart is descriptive: overlapping publicity, broader comic-market conditions and other Venom publishing activity can affect the same transactions.
02 / CATALYST BY CATALYST
What changed around each event?
Median prices and recorded volumes in the 30 calendar days before and after each date. Event-day sales are excluded. Overlapping windows are not independent effects.
| Milestone | Before median | After median | Price change | Volume change |
|---|---|---|---|---|
1 Tom Hardy cast as Eddie Brock ↗2017-05-19 | $1,7565 sales | $2,2259 sales | +26.7% | +80.0% |
2 Official teaser trailer ↗2018-02-08 | $1,9503 sales · very small sample | $1,9999 sales | +2.5% | +200.0% |
3 Official trailer ↗2018-04-23 | $1,876.5012 sales | $2,20015 sales | +17.2% | +25.0% |
4 U.S. theatrical release ↗2018-10-05 | $2,32519 sales | $2,2009 sales | -5.4% | -52.6% |
Samples below five transactions are flagged. Percentage changes are descriptive and do not establish causation. Trading is frequent throughout the 2017–2018 film cycle, so monthly medians preserve timing detail and 30-day event windows have adequate observations for the principal milestones. The study remains descriptive and does not treat the windows as independent causal effects.
03 / THE LONG VIEW
The 2018 movie sits inside a much longer market cycle.
GPA's annual averages provide long-view context for all 1,630 captured transactions. The 2026 average is year-to-date through the capture date.
Annual averages reproduce GPA’s rounded summaries and differ from the medians above. The capture year is partial.
RESEARCH NOTES
Traceable data.
Defined comparisons.
Recorded transactions, documented exclusions, and sourced events.
Capture audit
GPAnalysis ↗ · 1630 captured rows · 1630 eligible rows · 329 plotted rows. Capture scope: lifetime. All annual rows listed by GPA from 2002 through September 17, 2026 were captured; 2026 is a partial year.
Method selection
Trading is frequent throughout the 2017–2018 film cycle, so monthly medians preserve timing detail and 30-day event windows have adequate observations for the principal milestones. The study remains descriptive and does not treat the windows as independent causal effects.
Sales & coverage
Source: GPAnalysis ↗. The supplied capture contains all 1,630 individual rows listed from 2002 through September 17, 2026 for Amazing Spider-Man #300, CGC 9.8 Universal, Direct Edition. The 2026 year is partial.
Calculations
Monthly medians pool individual recorded sales in each observed month. Event comparisons use the 30 days before and 30 days after each event, excluding event day. The baseline pools September 2016 through February 2017. No inflation, fees, currency normalization or broader-market adjustment is applied.
Historical event sources
- The Guardian: Tom Hardy cast as Eddie Brock2017-05-19 · Contemporaneous report quoting Sony's announcement; Sony also set October 5, 2018 as the release date.
- Sony Pictures Entertainment: Official teaser trailer2018-02-08 · Sony's first official teaser upload.
- Sony Pictures Entertainment: Official trailer2018-04-23 · Sony's official trailer upload.
- Sony Pictures Entertainment: U.S. theatrical release2018-10-05 · Sony's film page identifies Venom as a 2018 feature; the studio's campaign materials set October 5, 2018 as release day.
Prices are nominal GPA-displayed dollars, not inflation-adjusted. Fees, currency normalization, and individual listings have not been independently audited. Counts are recorded transactions, not unique physical copies or total-market volume. Timing alone does not establish cause; no broad-market control is applied. Certified Comic Shop Research · 2026-09-17.