NSP vs. NBIX

Last updated Jun 4, 2026

NSP (Insperity, Inc.) and NBIX (Neurocrine Biosciences, Inc.) are both stocks. NSP operates in Staffing & Employment Services (Industrials), while NBIX operates in Drug Manufacturers - Specialty & Generic (Healthcare). Over the past 10 years, NSP returned 1.83%/yr vs 12.80%/yr for NBIX. At a 0.26 correlation, their price movements are largely independent.

Performance

NSP vs. NBIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Insperity, Inc. (NSP) and Neurocrine Biosciences, Inc. (NBIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, NSP achieves a -10.78% return, which is significantly lower than NBIX's 16.41% return. Over the past 10 years, NSP has underperformed NBIX with an annualized return of 1.83%, while NBIX has yielded a comparatively higher 12.80% annualized return.

NSP

• 1D: -6.28%
• 1M: 13.71%
• YTD: -10.78%
• 6M: -2.30%
• 1Y: -43.76%
• 3Y*: -31.73%
• 5Y*: -15.19%
• 10Y*: 1.83%

NBIX

• 1D: 6.63%
• 1M: 23.15%
• YTD: 16.41%
• 6M: 8.65%
• 1Y: 32.09%
• 3Y*: 21.38%
• 5Y*: 11.83%
• 10Y*: 12.80%

*Multi-year figures are annualized to reflect compound growth (CAGR)

NSP vs. NBIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
NSP Insperity, Inc.	-10.78%	-47.78%	-32.13%	5.24%	-1.91%	50.15%	-3.06%	-6.75%	64.23%	66.60%
NBIX Neurocrine Biosciences, Inc.	16.41%	3.90%	3.60%	10.31%	40.24%	-11.14%	-10.83%	50.53%	-7.96%	100.49%

Correlation

The correlation between NSP and NBIX is -0.03, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.03
Correlation (3Y) Calculated over the trailing 3-year period	0.06
Correlation (5Y) Calculated over the trailing 5-year period	0.14
Correlation (10Y) Calculated over the trailing 10-year period	0.21
Correlation (All Time) Calculated using the full available price history since Jan 30, 1997	0.26

The correlation between NSP and NBIX shifts across timeframes, from -0.03 (1 year) to 0.26 (all time), reflecting how their relationship changes across market environments.

Fundamentals

EPS NSP : -$0.90 NBIX : $6.53
PS Ratio NSP : 0.19 NBIX : 5.45
Total Revenue (TTM) NSP : $4.95B NBIX : $3.10B
Gross Profit (TTM) NSP : $892.00M NBIX : $3.05B
EBITDA (TTM) NSP : $31.00M NBIX : $881.20M

Return for Risk

NSP vs. NBIX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

NSP

NSP Risk / Return Rank: 15
NSP Sharpe Ratio Rank: 13
NSP Sortino Ratio Rank: 16
NSP Omega Ratio Rank: 15
NSP Calmar Ratio Rank: 17
NSP Martin Ratio Rank: 16

NBIX

NBIX Risk / Return Rank: 68
NBIX Sharpe Ratio Rank: 72
NBIX Sortino Ratio Rank: 66
NBIX Omega Ratio Rank: 67
NBIX Calmar Ratio Rank: 69
NBIX Martin Ratio Rank: 68

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

NSP vs. NBIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Insperity, Inc. (NSP) and Neurocrine Biosciences, Inc. (NBIX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	NSP	NBIX	Difference
Sharpe ratio Return per unit of total volatility	-0.66	1.04	-1.70
Sortino ratio Return per unit of downside risk	-0.67	1.54	-2.21
Omega ratio Gain probability vs. loss probability	0.90	1.21	-0.31
Calmar ratio Return relative to maximum drawdown	-0.66	1.54	-2.20
Martin ratio Return relative to average drawdown	-1.16	3.39	-4.56
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

NSP vs. NBIX - Sharpe Ratio Comparison

The current NSP Sharpe Ratio is -0.66, which is lower than the NBIX Sharpe Ratio of 1.04. The chart below compares the historical Sharpe Ratios of NSP and NBIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	NSP	NBIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.66	1.04	-1.70
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.35	0.36	-0.71
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.04	0.33	-0.29
Sharpe Ratio (All Time) Calculated using the full available price history	0.15	0.15	+0.01

Drawdowns

NSP vs. NBIX - Drawdown Comparison

The maximum NSP drawdown since its inception was -95.37%, roughly equal to the maximum NBIX drawdown of -97.21%. Use the drawdown chart below to compare losses from any high point for NSP and NBIX.

Drawdown Indicators

	NSP	NBIX	Difference
Max Drawdown Largest peak-to-trough decline	-95.37%	-97.21%	+1.84%
Max Drawdown (1Y) Largest decline over 1 year	-66.70%	-20.90%	-45.80%
Max Drawdown (3Y) Largest decline over 3 years	-82.53%	-42.89%	-39.64%
Max Drawdown (5Y) Largest decline over 5 years	-82.82%	-42.89%	-39.93%
Max Drawdown (10Y) Largest decline over 10 years	-83.15%	-46.39%	-36.76%
Current Drawdown Current decline from peak	-71.54%	0.00%	-71.54%
Average Drawdown Average peak-to-trough decline	-38.21%	-43.85%	+5.64%
Ulcer Index Depth and duration of drawdowns from previous peaks	37.62%	9.48%	+28.14%

Volatility

NSP vs. NBIX - Volatility Comparison

Insperity, Inc. (NSP) has a higher volatility of 20.85% compared to Neurocrine Biosciences, Inc. (NBIX) at 12.60%. This indicates that NSP's price experiences larger fluctuations and is considered to be riskier than NBIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	NSP	NBIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	20.85%	12.60%	+8.25%
Volatility (6M) Calculated over the trailing 6-month period	53.93%	23.57%	+30.36%
Volatility (1Y) Calculated over the trailing 1-year period	66.10%	31.08%	+35.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	43.41%	32.72%	+10.69%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	46.23%	39.19%	+7.04%

Dividends

NSP vs. NBIX - Dividend Comparison

NSP's dividend yield for the trailing twelve months is around 7.14%, while NBIX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
NBIX Neurocrine Biosciences, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
NSP Insperity, Inc.	7.14%	6.20%	3.06%	1.90%	1.77%	3.18%	1.97%	1.39%	0.86%	2.75%	1.37%	1.77%

Financials

Frequently Asked Questions

Can I hold both NSP and NBIX in my portfolio?

NSP and NBIX have a correlation of -0.03, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, NSP or NBIX?

NSP has higher volatility (20.85%) compared to NBIX (12.60%). In terms of maximum drawdown, NSP dropped -95.37% vs NBIX's -97.21%.

Which has better risk-adjusted returns?

NBIX currently has the higher Sharpe Ratio (1.04 vs -0.66), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.