Gentherm’s Downside‑Heavy Asymmetry Raises Red Flags in a Bull‑High‑Vol Market

Three risk warnings and a history of deep drawdowns suggest the rally could be fragile

THRM Gentherm Incorporated

In this report

01

Returns Overview

Period returns, alpha, cumulative performance, distributions

P. 2-3

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02

Volatility Analysis

Annualized volatility, downside deviation, drawdowns

P. 4-5

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03

Beta & Correlation

Trailing, upside, downside beta, systematic risk

P. 6-7

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04

Risk-Adjusted Returns

Sharpe, Sortino, Calmar, Information, Treynor

P. 8-9

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05

Market Regime Analysis

Bull/bear behavior, capture ratios

P. 10-11

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06

Investment Highlights & Risk Summary

Executive summary, risk flags, rankings

P. 12-13

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Returns Overview

Gentherm Incorporated (THRM) — Return Performance

Gentherm Incorporated (THRM) delivered a mixed return profile over the past three years, generating positive total returns in the near term but underperforming its sector ETF on a risk-adjusted basis. The stock posted a strong 1‑month gain of 4.5% and an impressive 3‑month rally of 30.49%, both exceeding the sector's alpha (7.09% and 17.39%) and sector-adjusted returns (9.47% and 25.09%). However, performance deteriorated over longer horizons, with a 6‑month return near flat (-0.33%), a 1‑year gain of 28.14% still lagging the sector’s adjusted 22.04%, and steep declines in the 2‑year (-26.5%), 3‑year (-35.85%) and 5‑year (-48.98%) periods, each trailing both raw sector returns and alpha benchmarks.

Period Returns vs S&P 500 & XLY

Monthly Returns Heatmap

THRM

In the short term (1‑3 months), THRM generated significant outperformance, delivering alpha of 7.09% and 17.39% versus the consumer cyclical sector, indicating strong momentum or catalyst-driven buying. Over medium to long horizons (6 months to 5 years), the stock reversed sharply, posting negative returns that underperformed both the sector and its own historical alpha, suggesting a divergence between recent optimism and underlying fundamentals.

Returns Overview

Gentherm Incorporated (THRM) — Return Charts

Volatility Analysis

Gentherm Incorporated (THRM) — Volatility Profile

Gentherm Incorporated exhibits markedly higher price variability than the broader market, with an annualized volatility of 38.5% compared to the S&P 500's 17.78%, indicating more than double the typical stock‑price swings. The downside risk profile is pronounced: a downside deviation of 27.59% and a historical maximum drawdown of -76.34% over a multi‑year period underscore significant vulnerability during market stress, with the decline spanning from early 2022 to April 2025 without any recovery to prior peaks. Recent short‑term volatility remains elevated; both the 60‑day (36.15%) and 252‑day (37.08%) measures sit above the long‑term average of 38.5%, suggesting that price swings have not yet normalized.

Volatility Metrics

THRM

Gentherm's volatility is substantially higher than the S&P 500 benchmark, reflecting a riskier equity profile that may appeal to investors seeking larger price moves. The downside deviation of 27.59% signals that negative returns are both frequent and severe relative to market norms, while the -76.34% max drawdown demonstrates an extreme tail‑risk event with a prolonged three‑year duration and no observed recovery. Current trailing volatilities—36.15% over 60 days and 37.08% over 252 days—remain slightly below the long‑term annualized level, indicating modest short‑term easing but still well above market averages.

Annualized volatility of 38.5% is more than double the S&P 500's 17.78%.
Downside deviation of 27.59% points to heightened sensitivity to negative market moves.
Maximum drawdown of -76.34% over a three‑year span reflects severe tail risk and lack of recovery.
Both 60‑day and 252‑day volatilities are above the S&P 500 benchmark, though marginally below THRM's own long‑term average.
The stock’s risk profile is considerably more aggressive than the market, implying higher potential reward but also greater downside exposure.

Positive Characteristics
Trailing volatility measures have eased slightly relative to the historical annualized peak, hinting at a modest reduction in short‑term price turbulence.
Despite high overall volatility, the stock has not yet exhibited any recent recovery from its max drawdown, leaving room for potential upside if fundamentals improve.

Volatility Analysis

Gentherm Incorporated (THRM) — Volatility & Drawdown Charts

Beta & Correlation

Gentherm Incorporated (THRM) — Beta Profile

Gentherm Incorporated exhibits a trailing beta of 1.166 against the S&P 500, placing it at the upper edge of the market‑like range (0.8–1.2). This suggests that, on average, the stock moves slightly more than the broad market in both up and down markets, but does not yet reach the aggressive threshold (>1.2). The upside beta of 1.049 and downside beta of 1.048 are virtually identical, indicating a symmetric response to positive and negative market moves; the company’s risk profile is therefore balanced rather than skewed toward either side of market cycles. The R‑squared of 0.29 implies that only 29 % of Gentherm’s return variance can be explained by movements in the S&P 500, leaving a substantial 71 % driven by idiosyncratic factors. Consequently, diversification benefits remain strong because most of the stock’s performance is not tightly coupled to broad market swings. When benchmarked against its consumer‑cyclical sector (XLY), the sector beta of 0.954 indicates near‑parity with sector movements, while the sector correlation of 0.531 and sector R² of 0.282 reinforce that roughly a third of price variation stems from sector dynamics, with the remaining two‑thirds attributable to company‑specific drivers.

Beta & Correlation Metrics

THRM

Gentherm’s market beta of 1.166 signals modestly higher sensitivity to overall equity market fluctuations, yet it stays within a defensive-to-market‑like band, suggesting limited leverage risk. The near‑identical upside and downside betas (1.049 vs. 1.048) mean the stock does not exhibit pronounced asymmetry; investors can expect comparable magnitude of gains or losses when the market moves in either direction. The low R‑squared (0.29) and high idiosyncratic risk share (71 %) indicate that company‑specific factors—such as product innovation cycles, contract wins, and supply‑chain dynamics—dominate price behavior, providing meaningful diversification potential even within a volatile market environment.

Trailing beta of 1.166 places Gentherm at the high end of market‑like risk, implying slightly amplified exposure to S&P 500 moves.
Upside and downside betas are virtually equal (1.049 vs. 1.048), indicating symmetric reaction to market gains and losses.
R‑squared of 0.29 shows that only 29 % of return variance is explained by the market, leaving 71 % driven by idiosyncratic factors.
Sector beta of 0.954 suggests Gentherm tracks its consumer‑cyclical peers closely, but sector correlation (0.531) and sector R² (0.282) reveal that sector influence accounts for roughly one‑third of price movement.
The split between systematic risk (29 %) and idiosyncratic risk (71 %) underscores the stock’s strong diversification benefit relative to pure market exposure.

Positive Characteristics
Symmetric upside/downside beta reduces surprise tail risk during market swings.
High idiosyncratic component offers diversification benefits for portfolios seeking non‑market driven returns.
Sector beta near unity provides predictable alignment with consumer‑cyclical trends without excessive sector concentration.

Beta & Correlation

Gentherm Incorporated (THRM) — Rolling Beta

Positive Notes

Symmetric upside/downside beta reduces surprise tail risk during market swings.

High idiosyncratic component offers diversification benefits for portfolios seeking non‑market driven returns.

Sector beta near unity provides predictable alignment with consumer‑cyclical trends without excessive sector concentration.

Risk-Adjusted Returns

Gentherm Incorporated (THRM) — Risk-Adjusted Performance

Gentherm Incorporated exhibits modest risk‑adjusted performance over the measurement period. The Sharpe ratio of 0.093 is well below the 1.0 threshold that signals a satisfactory excess return per unit of total volatility, indicating that the stock has barely outperformed the risk‑free rate after accounting for overall risk. However, the Sortino ratio of 0.13 exceeds the Sharpe figure, suggesting that downside volatility has been somewhat lower than total volatility and that the equity’s returns are less penalized by adverse price movements.

Risk-free rate: 3.63% (Fed Funds Rate)

Risk-Adjusted Metrics

THRM

Gentherm ranks first—and only—among the set of companies evaluated for risk‑adjusted metrics, but its absolute scores point to limited reward relative to risk. The Calmar ratio of 0.094 reflects a small return compared with the maximum historical drawdown, implying that periods of loss have eroded much of the upside gain. An Information Ratio of -0.172 signals negative alpha generation relative to a benchmark, indicating that active management has underperformed the reference index on a risk‑adjusted basis. The Treynor ratio of 3.067 is high, but because it measures return per unit of systematic risk (beta), its interpretation depends on the underlying beta; without a disclosed beta, the figure alone cannot confirm superior performance.

Sharpe ratio of 0.093 signals underperformance relative to total volatility.
Sortino ratio exceeds Sharpe, indicating a relatively milder downside risk profile.
Calmar ratio of 0.094 highlights that returns are modest compared with the worst drawdown experienced.
Negative Information Ratio (-0.172) shows the stock has not delivered consistent alpha over its benchmark.
Treynor ratio is high (3.067), but without beta context it does not confirm superior risk‑adjusted return.

Positive Characteristics
Sortino ratio surpasses Sharpe, reflecting a comparatively favorable downside volatility environment.
The Treynor figure suggests that the equity may have delivered reasonable returns per unit of systematic market risk.

Risk-Adjusted Returns

Gentherm Incorporated (THRM) — Rolling Sharpe & Sortino

Positive Notes

Sortino ratio surpasses Sharpe, reflecting a comparatively favorable downside volatility environment.

The Treynor figure suggests that the equity may have delivered reasonable returns per unit of systematic market risk.

Market Regime Analysis

Gentherm Incorporated (THRM) — Regime Behavior

Gentherm Incorporated (THRM) demonstrates modestly consistent performance in bullish environments, delivering average monthly returns of 2.24% during calm uptrends and 2.06% when the market is volatile but still rising. In contrast, its downside resilience is limited; during bearish periods it suffers sharp losses, with an average decline of -5.65% in orderly declines and -4.71% in turbulent downturns. The upside capture of 102.4% indicates that THRM slightly outperforms the S&P 500 on the upside, but a downside capture of 148.5% and a resulting capture ratio of 0.69 reveal disproportionate sensitivity to market drops, suggesting the stock is not defensive in bear regimes.

Current Market Regime: Bull-HighVol

Bull-LowVol = calm uptrend • Bull-HighVol = volatile uptrend • Bear-LowVol = orderly decline • Bear-HighVol = crisis

Regime Returns & Capture Ratios

THRM

In a Bull-LowVol regime, THRM generates solid positive momentum (2.24% avg), reflecting its growth exposure to automotive thermal management demand that benefits from stable equity optimism. The Bull-HighVol environment slightly compresses returns to 2.06%, indicating some vulnerability to heightened market volatility despite the overall upward trend. During Bear-LowVol periods, THRM’s average loss of -5.65% underscores a lack of defensive characteristics; its earnings are tied to discretionary vehicle production, which contracts in declining markets. The Bear-HighVol regime shows a marginally better outcome (-4.71%) but still reflects significant downside risk, as heightened volatility amplifies investor aversion to cyclical stocks.

Market Regime Analysis

Gentherm Incorporated (THRM) — Regime & Capture Charts

Regime Timeline

THRM’s upside capture exceeds the market (102.4%), confirming it can ride bullish moves slightly better than the S&P 500.
Downside capture of 148.5% signals that losses are amplified in falling markets, eroding overall risk-adjusted performance.
The capture ratio of 0.69 is well below the ideal threshold of 1.0, indicating a net negative asymmetry between upside and downside exposure.
In the current Bull-HighVol regime, THRM’s average return (2.06%) remains positive but modestly lower than in calmer bull markets, reflecting sensitivity to volatility.
The stock is not defensive; it lacks the resilience needed for bear regimes, as evidenced by double-digit negative monthly averages.

Positive Characteristics
Slight outperformance during bullish periods suggests growth upside when automotive demand remains strong.
Maintains positive returns even in volatile uptrends, indicating some ability to capture market rallies.

Investment Highlights & Risk Summary

Gentherm Incorporated (THRM) — Summary & Implications

Gentherm Incorporated delivered a robust 28.14% total return over the past year, generating an alpha of 9.14% versus the S&P 500 and outpacing its consumer‑cyclical peers by 22.04% sector alpha. However, the stock’s risk profile is pronounced: annualized volatility sits at 38.5%, beta exceeds market exposure at 1.166, and a historic max drawdown of -76.34% underscores deep downside vulnerability. The upside capture ratio of 102.4% suggests the company participates fully in market rallies, yet its downside capture of 148.5% and low Sharpe (0.093) indicate that losses are amplified and risk‑adjusted returns are weak. Investors should weigh the strong absolute performance against the elevated tail risk and asymmetric loss profile when considering Gentherm for a medium‑term allocation.

Summary Dashboard

Investment Highlights

Year‑to‑date return of 28.14% produced an alpha of +9.14% versus the S&P 500, demonstrating meaningful outperformance on an absolute basis.
Sector alpha of +22.04% indicates Gentherm has materially exceeded the broader consumer‑cyclical index (XLY) over the same period.
Upside capture of 102.4% shows the stock participates fully in market gains, preserving upside potential during bullish phases.
Beta of 1.166 reflects a modestly higher sensitivity to market movements, offering an opportunity for investors seeking amplified exposure to equity rallies.

Risk-Return Rankings

THRM HIGH

Strong absolute returns but high volatility and deep drawdown risk produce a high‑risk, high‑return profile.

Strength: Yearly alpha of +9.14% versus the S&P 500

Concern: Maximum historical drawdown of -76.34% with downside capture of 148.5%

Key Takeaways

Gentherm’s outperformance relative to both the market and its sector is compelling for return‑seeking investors.
The Sharpe ratio of 0.093 signals poor risk‑adjusted performance; excess returns are not commensurate with volatility.
A downside capture well above 100% (148.5%) means the stock magnifies market declines, creating asymmetric loss potential.
High beta (1.166) and annualized volatility (38.5%) suggest the stock will swing more than the broader market, suitable only for investors comfortable with elevated risk.

PORTFOLIO IMPLICATIONS

Gentherm may serve as a satellite position within a growth‑oriented equity portfolio that can tolerate high volatility and seeks sector‑specific alpha. Its strong upside capture complements defensive holdings by adding upside participation during market rallies, but the pronounced downside bias requires offsetting with low‑beta or negatively correlated assets to mitigate tail risk. Portfolio construction should therefore limit exposure to Gentherm’s high‑risk profile, perhaps capping its weight at 5%–10% of total equity allocation, while pairing it with lower‑volatility securities to smooth overall return volatility.

THRM

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Report written 2026-06-07 • Finexus

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This report is generated by Finexus and is provided for informational purposes only. It does not constitute investment advice, a recommendation, or an offer or solicitation to buy or sell any security.

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