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

more like this same subject first, then the same presenter, then the rest of the day