Pre-Event Setup
The frozen packet treated Flight 13 as a four-objective ship test: ascent, deployment of the first next-generation Starlink V3 payloads, an in-space Raptor relight, and a controlled Indian Ocean splashdown. It assigned 40% probability to clean success across those objectives, 30% to partial success, 20% to another scrub or delay, and 10% to launch failure.
The packet was right to keep Rocket Lab as a second-order read-through. It was wrong on one important contextual fact: SpaceX was no longer private. SPCX began trading on Nasdaq on June 12, 2026, following [SpaceX's IPO pricing announcement](https://ir.spacex.com/updates/releases-details/2026/Space-Exploration-Technologies-Corp--Announces-Pricing-of-Initial-Public-Offering/default.aspx). The frozen pre-event record is not rewritten after the fact; this review uses the correct public-company state.
What Actually Happened
The July 23 attempt was scrubbed for weather. Flight 13 launched from Starbase at 6:51 p.m. ET on July 24.
The ship then cleared every objective named in the frozen full-mission prediction:
- completed ascent;
- deployed 20 next-generation Starlink V3 test satellites;
- relit a Raptor engine in space;
- executed a controlled, soft Indian Ocean splashdown and remained intact.
That is a meaningful technical increment for the Starship-to-Starlink capacity thesis. It is not a flawless end-to-end reusability result. The Super Heavy booster relit only a subset of the engines needed for its landing burn and hit the Gulf hard. The scorecard therefore resolves the literal four-objective ship prediction TRUE while preserving the booster miss as disconfirming evidence for recovery maturity.
Sources: [AP flight report](https://apnews.com/article/2d1f10bd676c296bc7db5e0c56cb9a4e), [Space.com mission review](https://www.space.com/space-exploration/launches-spacecraft/spacexs-starship-megarocket-makes-the-softest-splashdown-ever-after-launching-next-gen-starlink-satellites-in-flight-13-test-video), and [Ars Technica post-flight analysis](https://arstechnica.com/space/2026/07/spacex-eyes-tower-catch-for-next-starship-after-auspicious-end-to-13th-flight/).
Prediction Scoring
| # | Prediction | Confidence | Result | Brier |
| ---: | --- | ---: | :---: | ---: |
| 1 | Launch on or before July 23 | 60% | False | 0.3600 |
| 2 | Deploy next-generation Starlink V3 payloads | 50% | True | 0.2500 |
| 3 | Complete the in-space Raptor relight | 55% | True | 0.2025 |
| 4 | Controlled ship splashdown in the Indian Ocean | 45% | True | 0.3025 |
| 5 | All four named ship objectives succeed | 35% | True | 0.4225 |
| 6 | July 23 attempt is scrubbed | 28% | True | 0.5184 |
| 7 | Vehicle loss before ascent completes | 15% | False | 0.0225 |
| 8 | RKLB moves more than 3% in the session after the outcome | 20% | True | 0.6400 |
Average Brier on all eight predictions: 0.340. The largest misses were underweighting RKLB's first-session move, the July 23 scrub, and the probability that the ship would clear all four named objectives. The low-probability ascent-loss tail was correctly rejected.
The packet also exposed a specification problem: "full mission success" named only ship objectives, while a booster recovery test was part of the broader flight. Future packets should score ship mission success and booster recovery separately.
Market Reaction Diverged From the Engineering Result
The first regular session after Flight 13 produced the opposite directions from the clean-success scenario:
- SPCX closed at $113.50, down 1.36%.
- RKLB closed at $66.94, up 4.74%.
The RKLB move cleared the prediction's 3% absolute threshold, but its direction was positive rather than the mild negative expected after clean Starship execution. SPCX fell despite the ship milestone. Those closes are valid reaction measurements, not proof that Flight 13 alone caused either move; valuation, share-supply, and company-specific factors remained active. Market data: [SPCX historical prices](https://finance.yahoo.com/quote/SPCX/history/) and [RKLB historical prices](https://www.investing.com/equities/vector-acquisition-historical-data).
Thesis Impact
Flight 13 partially confirms the load-bearing Starship V3 catalyst. SpaceX demonstrated payload deployment, an orbital-operations prerequisite through the in-space relight, and its best ship splashdown. Those achievements strengthen the mechanism behind lower-cost, higher-capacity Starlink V3 deployment.
The milestone is incomplete in two ways. First, the payloads followed a suborbital test trajectory; commercial orbital-scale V3 deployment is still ahead. Second, one successful ship flight does not establish monthly operational cadence, and the booster landing-burn miss shows recovery reliability remains unfinished.
The current SPCX thesis now:
- marks the first functional V3 deployment milestone as achieved;
- keeps monthly cadence and orbital-scale deployment pending;
- retains the booster landing-burn miss as execution evidence;
- uses the correct public-company framing;
- avoids treating the flight as confirmation of the stock's valuation.
No RKLB thesis change is warranted. Neutron's own schedule, qualification, customer commitments, and launch execution remain the decision authorities.
Trade Discipline
Do not chase SPCX on the engineering result. The first post-flight session was negative, and the existing valuation, capex, free-cash-flow, and share-supply guardrails remain binding.
Do not trade RKLB on a one-flight sympathy narrative. Its 4.74% gain resolved the volatility prediction but did not establish a causal Flight 13 signal. A successful Starship test widens the capability gap at the margin, but it does not alter Rocket Lab's medium-lift economics or prove anything about Neutron execution. The next dated evidence is RKLB's own program progress, not SpaceX's Friday webcast.