标普500连续63日窄幅波动，徘徊于50日均线附近

The most direct and specific support for the claim comes from Bespoke Investment Group's 2/25/26 commentary, which explicitly highlights a 63-trading-day streak of the S&P 500 hugging its 50-day moving average and includes chart-based evidence. Bespoke is a credible market research firm, and its analysis is highly relevant to the exact wording of the statement. Additional qualitative corroboration comes from Investing.com's discussion of tight consolidation and The Chart Report noting a narrow trading range over roughly the same period and proximity to the 50-DMA, which reinforces the theme of the market staying close to its 50-day average. The S&P Global Daily Index Dashboard is an authoritative primary data source and can provide the underlying official index levels and moving average context; while it does not directly enumerate a 63-day streak, its recent data indicating subdued realized volatility and stable pricing behavior are consistent with a tight trading range around a key moving average. The S&P Global research on options-based strategies discusses realized volatility more generally and is less specific to the current streak, but it is directionally supportive of the low-volatility environment implied by the claim. There are no sources presented that contradict the statement, and unrelated items (e.g., energy and wildlife topics) do not bear on the assessment. The main caveat is definitional: 'tight range around its 50-day moving average' is somewhat subjective unless a specific threshold is specified, and the precise '63 consecutive trading days' figure is primarily documented by Bespoke rather than an official index provider. Given the strong direct support from a credible analyst and consistent corroboration from other market commentary, but limited explicit confirmation from a primary index data document of the exact streak length, the claim is likely true with medium confidence.