WallStreetBets says Micron to $1,500 is “hardcoded”. The grain-of-salt index says 50 out of 100. The record says +222%.

This week's loudest calls on r/wallstreetbets were Micron (five bullish mentions to two bearish, including “MU $1500 is hardcoded”) and the S&P 500 (seven bullish, six bearish, including a call for a 767 gap-up open on Monday). AirPort records each of these as an attention span labelled opinion, and every one carries a grain-of-salt score of 50 out of 100; an audited filing scores 92 ± 3. The record: Micron closed at $1,014.70 on 18 September, up 222% this year and 4% on the week, still 16% below its 25 June high; SPY closed at $761.64, so a 767 open needs +0.7%. SanDisk, which one poster says a friend is short, closed at $1,792.83, up 551% this year.

in plain EnglishWallStreetBets is a huge online forum where people post about the stocks they are betting on, loudly and often as a joke. AirPort reads it, but files every post as an opinion with a trust score of 50 out of 100, half-trusted at best, while a company's audited filing scores 92. That score travels with the fact, so a model or a reader always knows which is which. This week the forum's favourite is Micron, the memory-chip maker, with posts calling for $1,500. What is actually on the record is that Micron has more than tripled this year and closed at about $1,015. Dave's point: enjoy the rumour, trade the record.

Reported Saturday 19 September 2026 · every number dated to its source, latest 19 September 2026

1 · evidence every number, with its source and its date

SPY 14 mentions (7 bull, 6 bear) · MU 8 (5 bull, 2 bear) · SNDK, GOOG, NVDA, NFLX 2 each

Most-mentioned on r/wallstreetbets, 13–19 Sept

_spans_wsb attention spans on the AirPort tape · 2026-09-19

“MU $1500 is hardcoded” · bullish · grain of salt 50

The Micron call

r/wallstreetbets via the AirPort tape, 18 Sept · 2026-09-18

“See you bright and early Monday for 767 gap up open” · bullish · grain of salt 50

The Monday call

r/wallstreetbets via the AirPort tape, 19 Sept · 2026-09-19

“Last time I let my MU calls ride through the weekend I did not have a good time. I'm doing it again so no lessons were learned”

The weekend gamble

r/wallstreetbets via the AirPort tape, 19 Sept · 2026-09-19

50 / 100 · every post · labelled opinion, unverified

Grain of salt · a WSB post

grain-of-salt index on the AirPort tape (wsb policy 2026-08-01) · 2026-09-19

92 ± 3 / 100 · audited, restatements happen

Grain of salt · a filing

grain-of-salt index on the AirPort tape · 2026-09-19

$1,014.70 · +222% this year · +4.1% this week · high $1,214.59 on 25 June

Micron (MU), the record

regular-session closes · the AirPort tape · 2026-09-18

$761.64 · −0.3% this week · a 767 open needs +0.7% · high $777.80 on 13 Aug

S&P 500 (SPY), the record

regular-session closes · the AirPort tape · 2026-09-18

$1,792.83 · +551% this year · +9.7% this week · “I wonder how the dude with the SNDK short is doing”

SanDisk (SNDK), the record

regular-session closes · the AirPort tape; r/wallstreetbets 19 Sept · 2026-09-18

Micron (MU)+193.1% since 2026-01-02

open $315 2026-01-02now $924 2026-09-14from the high -23.9%175 trading days · regular-session closes from the AirPort tape

SanDisk (SNDK)+551.2% since 2026-01-02

open $275 2026-01-02now $1,793 2026-09-18from the high -23.2%179 trading days · regular-session closes from the AirPort tape

S&P 500 (SPY)+10.4% since 2026-01-02

open $683 2026-01-02now $754 2026-09-16from the high -3.0%177 trading days · regular-session closes from the AirPort tape

2 · relations who this touches

Micron (MU)S&P 500 (SPY)SanDisk (SNDK)r/wallstreetbets

3 · history · 4 · analogues · 5 · ask Pro

AirPort has been watching this since before it was news. The trail, the last times this shape happened, and Ask, scoped to this story.GO DEEPER