BlackLine Inc

BLNASDAQ · USD
25.89USD-7.78 (-23.11%)
795

BlackLine Inc (BL) Historical Volatility

BL's 30 day historical volatility is 40.43%, in the 26th percentile of readings over the past year. This is a low percentile, meaning BlackLine Inc shares have been calmer than usual. BL's 30 day implied volatility sits at 69.20%, with an IV Rank of 51.19%, leaving IV 28.77 points above historical volatility. This means options are pricing in more movement than the stock has actually delivered, as of Nov 5, 2026.

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Tracking BL historical volatility helps you see how much BlackLine Inc's stock price has actually moved, giving you a baseline for whether option premiums look fair, cheap, or expensive. While implied volatility shows what the market expects, BL's HV, also known as realized volatility, shows what actually happened. Use our scanner to monitor BL 30 day historical volatility alongside longer lookback windows and spot the moments when realized and implied diverge.

Historical volatility is the annualized standard deviation of a stock's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. BL's 30 day historical volatility, or BL HV, is one of the most widely watched readings because it balances responsiveness with stability. Comparing BL's HV to its implied volatility reveals the volatility risk premium. When IV sits well above HV, options are pricing in more movement than the stock has actually delivered, giving option sellers an edge. When HV runs hot relative to IV, options are pricing in less movement than the stock has delivered, and buyers may be underpaying for it.

BlackLine, Inc. provides cloud-based solutions to automate and streamline accounting and finance operations worldwide. It offers financial close management solutions, such as account reconciliations that provides a centralized workspace for users to collaborate on account reconciliations; transaction matching that analyzes and reconciles high volumes of individual transactions; and task management to create and manage processes and task lists. The company's financial close management solutions also include journal entry that allows users to generate, review, and post manual journal entries; variance analysis that monitors and identifies anomalous fluctuations in balance sheet and income statement account balances; consolidation integrity manager that manages the automated system-to-system tie-out process that occurs during the consolidation phase of the financial close; and compliance, an integrated solution that facilitates compliance-related initiatives, consolidates project management, and provides visibility over control self-assessments and testing.

Historical Volatility

HV Percentile
26thHV Percentile
Low

Historical movement is subdued versus the past year. The stock has been unusually quiet.

Historical Volatility (30d)40.43%

HV Percentile26th

Implied Volatility (30d)69.20%

IV Rank51.19%

IV Minus HV+28.77%

As of Nov 5, 2026

IV vs HV
Implied Volatility (IV) vs Historical Volatility (HV) over the past month.

As of Nov 5, 2026

IV - HV Difference
Difference between IV and HV over time. Positive values indicate IV > HV.

As of Nov 5, 2026

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