Comments by Karl Mauerbach

GameStop Corp Apr 15, 2026 7:11AM ET

Yesterday, we saw 10.4m shares traded and the day closed green with +2.69%. Off-exchange trading accounted for 51% of total volume, folllowed by the NYSE with 15.2%. Reported short volume was at 57%, not including the volume from the CBOE venues. XRT saw 3.5m shares traded, 79% of it short and closed the day slightly green with +.47%. The current SI of the ETF sits at 520% with 23.9m shares short and 4.6m shares outstanding.

GameStop Corp Apr 13, 2026 5:00AM ET

Friday brought us 5.8m shares traded and the day closed green with +1.53%. Off-exchange trading accounted for 48.66%, followed by the NYSE with 15.86%. 68% of total volume traded short, not inculding the CBOE venues since they do not report on those figures anymore since 2023. XRT saw 4.2m shares traded, 65% of the volume trading short. The current SI sits at 525.27%, with 23.9m shares short and 4.55m shares outstanding. Worth mentioning that during XRT's listing under RegSho, the number of shares short has increased by 3.3m.

GameStop Corp Apr 10, 2026 2:53AM ET

Yesterday, we saw 3.1m shares traded and the day closed slightly red with -.17%. Off-exchange trading accounted for 51.2% of total volume, followed by the NYSE with 18.7%. Reported short volume was at 62.6%, not including the CBOE venues' short volume that is no longer reported on. XRT saw 5.6m shares traded, 80% of it short, while the ETF was listed under RegSho for the last day and is no longer listed today. The current SI sits at 429% with 4.8m shares short and 20.6m shares outstanding.

GameStop Corp Apr 08, 2026 3:15AM ET

Good morning everyone! Yesterday we saw high volume with 10.7m shares traded and the day closed green with +1.52%. Off-exchange trading came in high with 75.8%, followed by the NYSE with 7.44%. Short volume topped at massive 87%, not including the CBOE venues that do not report on short volume since July of 2023 anymore. XRT saw 68% short volume while being listed under RegSho, saw 4.2m shares traded and closed the day red with -.75%. The current SI sits at 423% with 20.6m shares short and 4.86m shares outstanding. XRT continues its listing under RegSho.

GameStop Corp Apr 07, 2026 4:19AM ET

Yesterday, we saw 3.6m shares traded and they day closed red with -1.2%. Off-exchange trading accounted for 56.4% of total volume, followed by the NYSE with 15.9%. Reported short volume was at 62.7%, not including the CBOE venues. XRT saw a green day with +1.72% while trading 3m shares, of which 55.8% traded short. The current SI sits at 374% with 20.6m shares short and 5.5m shares outstanding. XRT continues its listing under RegSho.

GameStop Corp Apr 03, 2026 3:41AM ET

Yesterday we saw 3.8m shares traded and the day closed green with +2.64%. Off-exchange trading was at 48.1%, followed by the NYSE with 17.3%. Reported short volume was at 57% which does not include short volume from the CBOE venues. XRT saw 3.3m shares traded, 57% of it short while being listed under Regsho, and closed the day slightly red with -.19%. The current SI sits at 473% with 4.35m shares short and 20.6m shares outstanding.

GameStop Corp Apr 02, 2026 5:08AM ET

Yesterday we saw 4.4m shares traded and the day closed red with -1.44%. Off-exchange trading accounted for 46% of total volume, followed by the NYSE with 28%. Short volume was reported at 63%, not including the CBOE venues that do not report on short volume anymore. XRT saw 6.8m shares traded, 77% of it short while being listed under RegSho. The current SI sits at 475% with 20.7m shares short and 4.35m shares outstanding. XRT continues its RegSho listing.

GameStop Corp Mar 30, 2026 7:47AM ET

Friday brought us 5m shares traded and closed the day red with -2.04%. Off-exchange trading accounted for 50.5% of total volume, followed by the NYSE with 17.7%. Reported short volume was at 66.7%, not including the CBOE venues that stopped reporting publicly on those figures. XRT saw 7m shares traded, 52% of it short while listed under RegSho, and closed the day red with -1.73%. The current SI sits at 504% with 20.7m shares short and 4.1m shares outstanding. The ETF continues to be listed under RegSho.

GameStop Corp Mar 27, 2026 3:56AM ET

Yesterday, we saw 6.9m shares traded and the day closed red with -2.25%. Off-exchange trading accounted for 49% of total volume, followed by the NYSE with 14.6%. Short volume was at 66.5% not including the CBOE venues that stopped reporting on those figures in 2023. XRT saw 8m shares traded, with 48.4% of it trading short (while being listed under RegSho), while closing slightly red with -.12%. The current SI sists at 316% with 20.7m shares short and 6.55m shares outstanding. XRT remains on the RegSho list of threshold securities.

GameStop Corp Mar 26, 2026 3:37AM ET

Yesterday, we saw 7.8m shares traded and the day closed green with +1.18%. Off-exchange trading accounted for 55.9% of total volume, followed by the NYSE. Reported short volume was at 66.7% of total volume, not including the CBOE venues. XRT saw 4.4m shares traded, 58% of it short while being listed under RegSho. The current SI sits at 289% with 20.7m shares short and 7.15m shares outstanding. XRT continues its listing under RegSho.

GameStop Corp Mar 24, 2026 3:17AM ET

Yesterday, we saw 5.2m shares traded and the day closed green with +2%. Off-exchange trading was at 47.5%, while short volume came in higher with 68.5% (not including the CBOE venues). XRT saw high volume with 10m shares traded, with 60% of it trading short while being listed under RegSho. The current SI sits at 436% with 16.6m shares short and 3.8m shares outstanding. XRT remains on the RegSho list. Today is also earnings day, so I expect to see some voltaile moments afterhours.

GameStop Corp Mar 23, 2026 6:16AM ET

Friday brought us 7m volume and the day closed red with -2.84%. Off-exchange trading accounted for 40.8%, followed by the NYSE with 37.5%, which is exceptionally high in comparison to more day. Reported short volume was at 52%, not inculding the CBOE venues that do not report on these figures anymore publicly. XRT saw 6.7m shares traded, 53% of it short, and closed the day red with -1.56%. The current SI sits at 436% with 3.8m shares outstanding and 16.6m shares short. XRT remains on the RegSho list.

GameStop Corp Mar 20, 2026 5:42AM ET

Yesterday, we saw 5.2m shares traded and the day closed slightly red wit h-.56%. Off-exchange trading accounted for 50.5% of total volume, followed by the NYSE with 11.6%. Reported short volume was at 49%, not including the CBOE venus. XRT saw 7.8m shares traded, 44.7% of it short, and closed the day green with +1.15%. The current SI sits at 395% with 16.6m shares short and 4.2m shares outstanding. XRT continues its listing under RegSho.

GameStop Corp Mar 19, 2026 3:48AM ET

Yesterday we saw 3m shares traded and the day closed slightly red with -.97%. Off-exchange trading accounted for 49.5% of total volume, followed by the NYSE. Reported short volume was at 57% of total volume, not including the CBOE venues. XRT saw 5.8m shares traded, 46% of it short and closed the day red with -1.7%. The current SI sits at 272% with 16.6m shares short and 6.1m shares outstanding. XRT continues to be listed under RegSho.

GameStop Corp Mar 18, 2026 4:07AM ET

Low volume yesterday with only 3m shares traded and the day closed green with +1.33%. Off-exchange trading accounted for 42% of total volume, followed by 22.66% on the NYSE. Reported short volume was at 54%, not including the CBOE venues. XRT saw 4m shares traded, while trading 38.6% short, and closed the day slightly green with -.24%. The current SI sits at 307% with 16.6m shares short and 5.4m shares outstanding. XRT continues its RegSho listing.

GameStop Corp Mar 17, 2026 9:59AM ET

Good day everyone, quite the rebounce from yesterday evening... Let's see how the day continues!

GameStop Corp Mar 16, 2026 3:26AM ET

Friday brought us 6.4ms ahres traded and the day closed red with -3.68%. Off-exchange trading accounted for 41.6% of total volume, followed by the NYSE with 14.8%. Short volume was at 59%, not including the CBOE venues that do not report on those figures since 2023. XRT saw 6.7m shares traded, 49% of it short, and closed the day slightly red with -.3%. The current SI sits at 368% with 16.6m shares short and 4.45m shares outstanding. Worth mentioning is that we saw a relatively high net redemption on Friday dropping the outstanding shares from 6.5m. XRT remains on the RegSho list.

GameStop Corp Mar 13, 2026 4:49AM ET

Yesterday, we saw 5.2m shares traded and the day closed slighty red with -.12%. Off-exchange trading accounted for 47.6% of total volume, followed by the NYSE with 16%. Reported short volume, not including the CBOE venues, was at 55%. XRT saw higher volume with 8.7m shares traded, 52% of it trading short (which is remarkably low) and closed the day red with -1.81%. The current SI sits at 255% with 16.6m shares short and 6.5m shares outstanding. XRT remains on the RegSho list.

GameStop Corp Mar 12, 2026 4:00AM ET

Yesterday, we saw 5.1m shares traded and the day closed slightly green with +.37%. Off-exchange trading accounted for 47.1% of total volume, followed this time by the Nasdaq GSM with 15.5% and then the NYSE with 13%. Reported short volume, not inculding the CBOE venues amounted to 63% of total volume. XRT saw 5.4m shares traded, 75% of it short, while being listed under RegSho. The current SI sits at 274% with 16.6m shares short and 6.05m shares outstanding. XRT continues its listing under RegSo.

GameStop Corp Mar 11, 2026 3:45AM ET

Yesterday we saw 5.1m shares traded and the day closed red with -1.73%. Off-exchange trading accounted for 50% of total volume, followed by the NYSE with 16.3%. Reported short volume was at 51.5%, not including the CBOE venues that stopped reporting publicly on short volume. XRT saw 7.5m shares traded, closed the day slightly red with -.28% while trading 63% short. The current SI sits at 218% with 16.6m shares short and 7.6m shares outstanding. XRT continues its listing under RegSho.

GameStop Corp Mar 10, 2026 3:53AM ET

Yesterday we saw 7.2m shares traded and the day closed green with +1.76%. Off-exchange trading accounted for 52% of total volume, followed by NYSE with 13%. Reported short volume was at 59%, not including the CBOE venues that do not report publicly on short volume anymore. XRT saw 9.6m shares traded, with an unusual low short percentage of only 39%. Worth mentioning that this was preceeded by a 10% drop in afterhours yesterday. The current SI sits at 240% with 16.11m shares short and 6.7m shares outstanding. XRT continues its listing under RegSho.

GameStop Corp Mar 09, 2026 3:57AM ET

Friday brought us 5.8m shares traded and closed the day green with +205%. Off-exchange trading accounted for 50.44%, reported short volume was at 62.7%, not including the CBOE venues. XRT saw 6.9m shares traded, 63% of it short while still being listed under RegSho and closed the day red with -1.84%. Worth mentioning is the -9.73% drop in afterhours that took the ETF from 83 to 75. The current SI of the ETF sits at 213% with 7.1m shares short and 16.1m shares outstanding. XRT continues to be listed under RegSho.

GameStop Corp Mar 05, 2026 2:50AM ET

Yesterday, we saw 3.5m shares traded (relatively low volume) and the day closed slightly green with +.21%. Off-exchange trading accounted for 19% of total volume, followed by the NYSE with 19%. Publicly reported short volume accounted for 48% of total volume, which does not include volume on the CBOE venues. XRT saw 4.4m shares traded, 66% of it short (while being listed under RegSho). The current SI of the ETF sits at 217% with 7.4m shares outstanding and 16.11m shares short. XRT continues its listing as a threshold security under RegSho.

GameStop Corp Mar 04, 2026 2:21AM ET

Yesterday, we saw 4.1m shares traded and the day closd red with -1.7%. Off-exchange trading accounted for 48% of total volume, followed by the NYSE with 15.3%. Reported short volume was at 47#5, not including the CBOE venues that stopped reporting publicly on short volume. XRT saw 9m volume, quite high, with 62% of it trading short, and closed the day red with -.59%. The current SI sits at 207% with 7.75m shares outstanding and 16.11 shares short. XRT continues ito be listed under RegSho.

GameStop Corp Mar 03, 2026 2:20AM ET

Yesterday we saw 4.6m shares traded and the day closed green with +. 71%. GME saw 42.6% trades go off-exchange and 23.15% trade on the NYSE, which is unusually high for the stock. 59% of the volume traded short (which does not include the CBOE venues). XRT saw 7.4m shares traded, 62% of it short (while being listed on RegSho) and closed the day red with -.94%. The current SI sits at 207% with 7.75m shares short and 16.1m shares outstanding. XRT remains on the NYSE RegSho list.