The Weekly ChartStorm

Substack by Callum Thomas · launched Mar 7, 2021

Hand picked charts and insights to help you Save Time, uncover Opportunities, and stay on top of the Stockmarket Outlook

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What they write about

A weekly collection of hand-picked S&P 500 charts. Each edition works through a technical check plus a rotating set of themes: sentiment and positioning, credit spreads, volatility and correlation, earnings revisions, sector internals such as semiconductors and REITs, and global equity comparisons.

  • charts
  • s&p 500
  • technical analysis
  • sentiment
  • positioning
  • credit spreads

Recent examples: Weekly S&P500 ChartStorm - 18 October 2026 · Weekly S&P500 ChartStorm - 11 October 2026

Written from The Weekly ChartStorm’s own published post titles and openings in Sep 11, 2026. It describes the subjects the newsletter covers, not its views, and is not investment advice.

Growth history

Subscribers (thousands, nightly)

44K on Sep 10, 2026 → 48K on Oct 21, 2026

Followers (thousands, nightly)

Rank in Substack’s finance leaderboard: #56 today · #55 a week ago · #62 a month ago

Stats worth sharing

Tracked since Sep 10, 2026 — 42 daily snapshots so far. The card below is built from what we track and refreshes nightly.

Percentile
Top 11%

of 525 ranked finance newsletters

Best rank seen
#53

on Oct 20, 2026

Rank, 7 days
−1 place
Rank, 30 days
+6 places
Subscribers added
+4.0K

since tracking began

Followers added
+290

since tracking began

Posts
4

last 30 days

Reactions per post
35

average, recent posts

Reactions tracked
629

across 18 posts

Most-reacted post we have seen: Weekly S&P500 ChartStorm - 12 July 2026 — 74 reactions on Jul 12, 2026.

The Weekly ChartStorm — rank, subscribers and growth, tracked by Stock Market Watch
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Recent posts

  • Weekly S&P500 ChartStorm - 18 October 2026

    Welcome to the latest Weekly S&P500 #ChartStorm ! Notes from this week’s charts: The equal-weighted S&P500 continues to recover. Meanwhile the cap-weighted is being weighed down by semis. Small caps have corrected big time, but there are reasons for optimism. Private equity stocks and margin debt are sounding warning signs. The market is increasingly skewed to…

  • Weekly S&P500 ChartStorm - 11 October 2026

    Welcome to the latest Weekly S&P500 #ChartStorm ! Tips and Takeaways from this week’s charts: The equal-weighted S&P500 is following the seasonal script. Election cycle seasonality is very bullish for Q4 and 2027. (but a key question: have we already brought some of this forward?) Semis are slipping, and continue to trade at a significant premium. Macro headwinds loom in 2027, effective borrowing costs set to rise. See below for the full set of charts and details behind these points + the [new] market outlook section at the end for my latest assessment. 1. Technical Check: after a sizeable…

  • Weekly S&P500 ChartStorm - 4 October 2026

    Welcome to the latest Weekly S&P500 #ChartStorm ! Learnings and conclusions from this week’s charts: The S&P500 remains in a healthy uptrend. (but the equal-weighted S&P500 has seen a major correction) The key driver of pain in the SPXEW is rising rates. The Equity Risk Premium has fallen to generational lows. Small Caps seeing heavily crowded shorts (short squeeze potential?) Overall , the overarching trend remains up for stocks, but rising rates have inflicted severe pain on rate sensitive sectors. Continue to monitor downside risks for stocks as the cycle progresses, but also upside risk…

  • Weekly S&P500 ChartStorm - 27 September 2026

    Welcome to the latest Weekly S&P500 #ChartStorm ! Learnings and conclusions from this week’s charts: The stockmarket has undergone a “stealth correction”. The equal-weighted S&P500 is down more than 5% off the peak. Breadth has been beaten down, and traders have been raising cash. Momentum stocks regaining momentum, profit margins punching higher. Valuations r…

  • Weekly S&P500 ChartStorm - 20 September 2026

    Welcome to the latest Weekly S&P500 #ChartStorm ! Learnings and conclusions from this week’s charts: Tech stock ETF flows recently reached record highs. Foreign flows into US stocks are surging (record highs). CEO confidence, ISM PMIs, and freight data are turning up. Margin debt indicators are sounding a clear risk warning signal. Much of the index are heading into a buyback blackout window. Overall , there is a lot of good news on the earnings and economy front as a broader cyclical upturn gets underway. But there are still lingering macro/(geo)political risks and market warning signs that…

  • Weekly S&P500 ChartStorm - 13 September 2026

    Welcome to the latest Weekly S&P500 #ChartStorm ! Learnings and conclusions from this week’s charts: Stocks are seeing a bit of pre-Fed jitters. Breadth has been steadily deteriorating across the board. Correlations, corporate bonds, and volatility suggest caution. Liquidity conditions are set to become a headwind for stocks. Growth has peaked vs value, semis are stagnating (for now). Overall , there is a distinct bearish hue to the charts this week as technical risk flags wave all around. As noted below though, there is a bullish way for this to resolve, but a few things need to happen… 1…

  • Weekly S&P500 ChartStorm - 6 September 2026

    Welcome to the latest Weekly S&P500 #ChartStorm ! Learnings and conclusions from this week’s charts: The S&P500 has been experiencing some speed wobbles. Seasonally speaking, this comes right about as you’d expect. Credit markets are whispering a couple of concerns (tech, CCC’s). Beware of boom-bust in tech/AI particularly as borrowing blooms. Profit margins h…

  • Weekly S&P500 ChartStorm - 30 August 2026

    Welcome to the latest Weekly S&P500 #ChartStorm ! Learnings and conclusions from this week’s charts: Sentiment is still majority consensus bullish. Stock correlations have dropped to record lows. Volatility (VIX) looks low vs seasonals and single-stock metrics. Semis are still stuck in the mud (peaked, and looking weak). Software is looking stronger (software …

  • Weekly S&P500 ChartStorm - 23 August 2026

    Welcome to the latest Weekly S&P500 #ChartStorm ! Learnings and conclusions from this week’s charts: Global corporate earnings estimates are surging. Tech is seeing big insider buying (but also heavy shorting). Energy, Gold, Bitcoin seen major ETF outflows (+are all turning up again). Indian stocks have been punished as an AI-loser within emerging markets. The VIX is bouncing along the bottom of the range, seasonality says it goes up. Overall , the global equities bull market looks alive and well, especially when you consider the surge in earnings expectations underpinning it. US tech stocks…

  • Weekly S&P500 ChartStorm - 16 August 2026

    Welcome to the latest Weekly S&P500 #ChartStorm ! Learnings and conclusions from this week’s charts: The equal-weighted is turning up vs cap-weighted S&P500. For now this is a good thing, it reflects the bullish broadening theme. Earnings revisions are surging, and this is partly supported by strong macro. Sentiment & allocations are surging thanks to higher …

  • Weekly S&P500 ChartStorm - 9 August 2026

    Welcome to the latest Weekly S&P500 #ChartStorm ! Learnings and conclusions from this week’s charts: Global equities are in a bull market (path of least resistance = higher). US equities are in a broad-based upswing. Investors are scrambling into tech stocks at a record pace. Calm macro is keeping the lid on credit spreads. (but) VIX seasonality says stay alert to Q3 surprises. Overall , the global equity bull market rages on, and with supportive-benign macro the path of least resistance is likely higher. That said, VIX seasonality and known tail risks suggest still having a plan and process…

  • Weekly S&P500 ChartStorm - 2 August 2026

    Welcome to the latest Weekly S&P500 #ChartStorm ! Learnings and conclusions from this week’s charts: The S&P500 closed July down -0.1% (but still up +9.4% YTD). Semiconductors have seen a 20%+ correction off the peak. Semiconductors’ seasonality says down, volatility says up. REITs and defensives are sounding a cautionary tone. Resources capex is being crowded out by tech capex. Overall , the carnage that unfolded last week in semiconductors is probably more likely setting up for consolidation and ranging (at best) vs the correction and resurgence like we saw earlier this year, as various…

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Data: Substack public leaderboards and publication archives, refreshed nightly, plus public beehiiv sitemaps and recommendation pages, refreshed weekly. Source for this page: The Weekly ChartStorm. Subscriber counts are Substack’s own rounded public figures, so week-on-week changes move in steps. beehiiv audience sizes are self-reported by the publisher and are not verified. Last snapshot: Oct 21, 2026.