﻿<?xml version="1.0" encoding="utf-8"?><rss version="2.0"><channel><title>Silicon Investor - Quarter to Quarter Aggressive Growth Stocks</title><copyright>Copyright © 2026 Knight Sac Media.  All rights reserved.</copyright><link>https://www.siliconinvestor.com/subject.aspx?subjectid=32511</link><description>Buying growing companies that dominate a niche. We have beaten the S&amp;P every year since 1996.   Jack</description><image><url>https://www.siliconinvestor.com/images/Logo380x132.png</url><title>SI - Quarter to Quarter Aggressive Growth Stocks</title><link>https://www.siliconinvestor.com/subject.aspx?subjectid=32511</link><width>380</width><height>132</height></image><ttl>10</ttl><item><title>[Jack Hartmann] ADD GFS 80.30 the last fab that will run.</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35530058</link><pubDate>5/27/2026 1:56:27 PM</pubDate></item><item><title>[Jack Hartmann] Sold BORR on missed earnings. 5.13</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35524515</link><pubDate>5/21/2026 1:13:16 PM</pubDate></item><item><title>[Jack Hartmann] Added AMC 1.46</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35523807</link><pubDate>5/20/2026 7:44:52 PM</pubDate></item><item><title>[Jack Hartmann] Sold XNDU on earning miss 13.65.</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35519244</link><pubDate>5/15/2026 4:47:19 PM</pubDate></item><item><title>[Jack Hartmann] Added RIO 110.65, XNDU 14.50</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35516875</link><pubDate>5/13/2026 3:34:37 PM</pubDate></item><item><title>[Jack Hartmann] Added Bp  46.63  Shel 89.72</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35507299</link><pubDate>5/4/2026 9:50:25 AM</pubDate></item><item><title>[Jack Hartmann] Added HUM at 219.89</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35494727</link><pubDate>4/21/2026 11:03:30 AM</pubDate></item><item><title>[Jack Hartmann] Sold BP 44.75 SHEL 87.27 XLE 54.27</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35493640</link><pubDate>4/20/2026 9:10:23 AM</pubDate></item><item><title>[Jack Hartmann] Buy VCX $112.</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35487432</link><pubDate>4/13/2026 11:07:33 AM</pubDate></item><item><title>[Jack Hartmann] BORR bought 5.89. USO partial sell at 140 GTC. </title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35480695</link><pubDate>4/6/2026 4:41:15 PM</pubDate></item><item><title>[Jack Hartmann] Sold FIG 21.05, LMT 604.04, RTX 190.48, PLTR 142.20, AVGO 302.31</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35474103</link><pubDate>3/31/2026 10:43:50 AM</pubDate></item><item><title>[Jack Hartmann] Sold CRCl 106.31</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35468820</link><pubDate>3/26/2026 9:16:20 AM</pubDate></item><item><title>[Jack Hartmann] Sold RZG 55.97 Bought FIG 23.53 Corn 18.69 and NORW 36.93</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35462195</link><pubDate>3/20/2026 10:11:46 AM</pubDate></item><item><title>[Jack Hartmann] Sold FLCH 22.58 FLMX 34.54</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35460978</link><pubDate>3/19/2026 9:49:34 AM</pubDate></item><item><title>[Jack Hartmann] Sold AAPL 252.82 META 628.49</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35459479</link><pubDate>3/17/2026 5:30:00 PM</pubDate></item><item><title>[Jack Hartmann] Sold FLFR 31.82 and RSP 195.25</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35458386</link><pubDate>3/16/2026 7:44:45 PM</pubDate></item><item><title>[Jack Hartmann] SOld FRGO 41.54 INKT 11.33 MP 61.20 NVCR 12.41 UBER 74.55 AMZN 212.84</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35452903</link><pubDate>3/11/2026 1:26:04 PM</pubDate></item><item><title>[Jack Hartmann] sold eqt 601.16 HD 351.09 IBM 247.85 UNH 283.85 FLUT 108.26 FLY 19.86</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35452902</link><pubDate>3/11/2026 1:25:04 PM</pubDate></item><item><title>[Jack Hartmann] going more into oil, added RTX 208.25, LMT 653.88 and CVX 189.94. more USO, SLV ...</title><author>Jack Hartmann</author><description>&lt;span id="intelliTXT"&gt;going more into oil, added RTX 208.25, LMT 653.88 and CVX 189.94. more USO, SLV PLTR&lt;/span&gt;</description><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35452899</link><pubDate>3/11/2026 1:24:01 PM</pubDate></item><item><title>[Jack Hartmann] Add USO ETF on oil pull back. 99.25</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35451840</link><pubDate>3/10/2026 1:40:41 PM</pubDate></item><item><title>[Jack Hartmann] Added xle at 56.99 on war.</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35442354</link><pubDate>3/2/2026 11:43:03 AM</pubDate></item><item><title>[Jack Hartmann] SOld R     $225.755 on earnings miss</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35424436</link><pubDate>2/11/2026 12:40:04 PM</pubDate></item><item><title>[Jack Hartmann] Sold FLNC on miss.     $20.72</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35423212</link><pubDate>2/10/2026 12:54:23 PM</pubDate></item><item><title>[Jack Hartmann] Added AVGO      $328.29 on pull back/</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35416266</link><pubDate>2/3/2026 9:45:54 AM</pubDate></item><item><title>[Jack Hartmann] Added SLV 75.46 on the big silver selloff.</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35412915</link><pubDate>1/30/2026 3:29:34 PM</pubDate></item><item><title>[Jack Hartmann] add AAPL at     $254.25</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35399491</link><pubDate>1/20/2026 9:33:32 AM</pubDate></item><item><title>[Jack Hartmann] added PLTR     $176.76</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35386562</link><pubDate>1/9/2026 9:43:40 AM</pubDate></item><item><title>[Jack Hartmann] add ibm at 299.00</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35382445</link><pubDate>1/6/2026 10:16:47 AM</pubDate></item><item><title>[Jack Hartmann] added mrvl 84.86 AMZN 228</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35365119</link><pubDate>12/19/2025 1:35:41 PM</pubDate></item><item><title>[Jack Hartmann] Added     Uber 91.53</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35333398</link><pubDate>11/17/2025 5:04:40 PM</pubDate></item><item><title>[Jack Hartmann] Added     Crcl 81.69</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35331023</link><pubDate>11/14/2025 9:24:41 PM</pubDate></item><item><title>[Jack Hartmann] Sold PLUG at 2.47</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35326983</link><pubDate>11/11/2025 2:51:37 PM</pubDate></item><item><title>[Jack Hartmann] Sold UDR 34.18, KLAR 34.63, DECK 80.13, FCEL 69.75, TKO 179.77, PSKY14.96, NVCR ...</title><author>Jack Hartmann</author><description>&lt;span id="intelliTXT"&gt;Sold UDR 34.18, KLAR 34.63, DECK 80.13, FCEL 69.75, TKO 179.77, PSKY14.96, NVCR 10.73&lt;br&gt;Bought 59.27, CF 80.27, WPC 67.10, HD 370.67&lt;/span&gt;</description><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35323195</link><pubDate>11/7/2025 12:51:44 PM</pubDate></item><item><title>[Jack Hartmann] Added BE at $108.00</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35294420</link><pubDate>10/13/2025 9:33:55 AM</pubDate></item><item><title>[Jack Hartmann] bought PLUG $2.43 and FCEL $8.97 FLNC 11.73</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35272013</link><pubDate>9/24/2025 1:33:43 PM</pubDate></item><item><title>[Jack Hartmann] Bought MP 66.80 Sold TXRH 164.63</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35264163</link><pubDate>9/17/2025 12:06:08 PM</pubDate></item><item><title>[Jack Hartmann] Bough KLAR %3.75 Sold PRGS 42.74.</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35255382</link><pubDate>9/10/2025 1:13:51 PM</pubDate></item><item><title>[Jack Hartmann] Sold roche  $43. Looks like HHS is going after all the pharmaceuticals that in t...</title><author>Jack Hartmann</author><description>&lt;span id="intelliTXT"&gt;Sold roche  $43. Looks like HHS is going after all the pharmaceuticals that in the foreign countries.&lt;/span&gt;</description><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35249488</link><pubDate>9/5/2025 3:07:25 PM</pubDate></item><item><title>[Jack Hartmann] added DECK at 119.63</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35242015</link><pubDate>8/29/2025 1:09:17 PM</pubDate></item><item><title>[Jack Hartmann] Added PSKY 10.89 GEV 650 sold HRL 28.61</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35220752</link><pubDate>8/11/2025 9:29:43 AM</pubDate></item><item><title>[Jack Hartmann] Added FLY 65.40</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35217313</link><pubDate>8/7/2025 1:32:36 PM</pubDate></item><item><title>[Jack Hartmann] Sold SMMT at 19.62 and OLPX at 1.30</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35156540</link><pubDate>6/5/2025 10:57:10 AM</pubDate></item><item><title>[Jack Hartmann] Bought UNH 289.77 Oversold. Good CEO coming in.</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35137937</link><pubDate>5/16/2025 1:04:37 PM</pubDate></item><item><title>[Jack Hartmann] Sold MATX 115.21 Bought FLMX 29.08</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35136635</link><pubDate>5/15/2025 9:57:57 AM</pubDate></item><item><title>[Jack Hartmann] sold clx 137.88 sold dg 87.98 Added more FLGR 31.69</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35133264</link><pubDate>5/12/2025 10:50:23 AM</pubDate></item><item><title>[Jack Hartmann] Added OLPX on breakout. $1.39</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35128953</link><pubDate>5/8/2025 10:21:30 AM</pubDate></item><item><title>[Jack Hartmann] Added TXRH 171.54 Sold Amzn 188.56</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35122810</link><pubDate>5/2/2025 10:51:17 AM</pubDate></item><item><title>[Jack Hartmann] added SMMT lung cancer treatment approved in China     $24.59</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35118209</link><pubDate>4/28/2025 11:00:53 AM</pubDate></item><item><title>[Jack Hartmann]  Bought defensive SO, DG, Bought Growth FLUT, PRGS</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35093889</link><pubDate>4/7/2025 11:42:44 AM</pubDate></item><item><title>[Jack Hartmann] Sold APGE, AVGO, MRK, NVO, SIRI, VRT, ELF, COP, URA</title><author>Jack Hartmann</author><description /><link>https://www.siliconinvestor.com/readmsg.aspx?msgid=35093888</link><pubDate>4/7/2025 11:42:33 AM</pubDate></item></channel></rss>