US EconomyOct 26, 2026, 3:50 PM ETNASDAQ CTA Artificial Intelligence&Robotics Index (NQROBO), NQINTEL, SPX, SP500, DJI, NDX, RTY, SPY, DIA, QQQ, IWM, IVV, VOOWTAI, THNQ, LRNZ, AIQ, UBOT, ARTY, ROBT, ROBO, BOTZ, ARKQ, KOMP, ARKK, DTEC, IGPT, AIBU, ALAI, AFMC, AFSM, AVUV, BAPR, IVOO, IVOV, IVW, IWC, IWN, IWO, IWP, IWR, IWS, IYY, SPLV, SPMD, SPMO, SPSM, SPUS, SPUU, SPVM, QVMT, SPXE, SPXL, SPXN, SPXS, SPXT, SPXU, SPXV, SPYD, SPYG, SPYV, SPYX, SQLV, SSO, SSPY, SVAL, SYLD, TMDV, TPHD, TPLC, TPSC, UAUG, UJAN, UMAR, UMAY, UOCT, UPRO, USMC, USMF, USVM, MAGS, VO, MDY, IJH, BMVP, FNX, EZM, CSD, CZA, BUL, XJH, IMCB, GRPM, SCHM, ONEO, EQAL, REGL, PTMC, JHMM, DEUS, XMHQ, FLQM, FTDS, JPME, FSCS, VFMF, VFMV, VFQY, FSMD, PAMC, SIXL, BKMC, QVMM, BBMC, MIDE, VXF, IJK, VOT, RFG, FAD, FNY, IPO, CWS, IMCG, MDYG, IVOG, XMMO, BFOR, FFTY, ETHO, QMOM, JSMD, NUMG, HAIL, VFMO, PEXL, BOUT, QQQJ, FRTY, PY, PEY, IJJ, VOE, DIV, DON, FAB, RWK, IMCV, MDYV, XMVM, XMLV, VUSE, QVAL, ONEV, ONEY, NUMV, WBIY, SDVY, VFVA, DVLU, DDIV, VRAI, HOMZ, LSAT, RSPT, FFSM, UPGD1 CommentLance Roberts34.84K FollowersKen Griffin says AI is “almost certainly” a bubble. He may be right. Being right about a bubble and being right about its timing are two very different things.The case for a bubble is real: Anthropic’s compute commitments run roughly 28 times its first-half revenue, and market breadth is near its narrowest in decades. The case against a 2000 replay is real too: today’s leaders are enormously profitable.Bubble calls in 2019, 2020 and 2021 were reasonable on the data. Since October 2019, $100,000 in the S&P 500 has grown to about $287,000, while cash has grown to about $121,000.Stocks would need to fall roughly 58% from here for the 2019 cash holder to come out ahead. As Peter Lynch warned, preparing for a crash often costs more than the crash itself.The answer isn’t all in or all out. Participate with the bubble, but with rules decided in advance.Getty ImagesTo paraphrase Peter Lynch, timing the AI bubble is the hard part, and history says going to cash early can cost more than the crash itself.Ken Griffin told a room full of investors recently that weThis article was written byLance Roberts34.84K FollowersAfter having been in the investing world for more than 25 years from private banking and investment management to private and venture capital; I have pretty much "been there and done that" at one point or another. I am currently a partner at RIA Advisors in Houston, Texas. The majority of my time is spent analyzing, researching and writing commentary about investing, investor psychology and macro-views of the markets and the economy. My thoughts are not generally mainstream and are often contrarian in nature but I try an use a common sense approach, clear explanations and my “real world” experience in the process. I am a managing partner of RIA Pro, a weekly subscriber based-newsletter that is distributed to individual and professional investors nationwide. The newsletter covers economic, political and market topics as they relate to your money and life. I also write a daily blog which is read by thousands nationwide from individuals to professionals at www.realinvestmentadvice.com.Comment(1)