Serina Therapeutics, Inc.: what the price is pricing in

There is no current sales reading for Serina Therapeutics, Inc.: its latest is from September 30, 2021. Switch lens below to see the other readings and how trading the gap would have done.

No published rating for Serina Therapeutics, Inc.: data-quality checks not passed. The readings below run our models backwards for research and show how trading the gap would have done; they are not a valuation or a rating. The valuation page shows the models and their status.

What profit margin is the price paying for?

No current reading. The latest is from September 30, 2021: the figures this lens needs have not been filed recently enough (or no longer apply), so there is no position this quarter.

Quarters with a position10 long, 1 short, since September 30, 2021

Beat the S&P 5000 of 10.0% of quarters held

Strategy against the index−4.9%cumulative; worst fall -4.9%

Over time

The owner-earnings margin (free cash flow after stock pay, as a share of revenue) the price requires at our model's growth, against the margin the company has delivered over three years.

Margin delivered Margin the price implies Long quarter Short quarter. Lower panel: the share price at each quarter end, adjusted for later share splits and spin-offs (the table below gives the price as traded).

Skill or luck?

In plain English: With only 1 quarters of positions, Serina Therapeutics, Inc.'s own record is too short to tell skill from luck. The results across all companies on the priced-in page are the better guide.

Positions	Quarters	Beat the S&P 500	Average vs S&P 500, a quarter	Typical (median), a quarter	A year	Confidence (t)	Evidence
Longs	0	—	—	—	—	—	—
Shorts	1	0.0%	−4.9%	−4.9%	−18.2%	—	Too few quarters
All positions	1	0.0%	−4.9%	−4.9%	−18.2%	—	Too few quarters

Each position is measured against the S&P 500 over the same quarter: a long earns the stock's return minus the index's, a short the index's minus the stock's. "A year" compounds the per-quarter results. Evidence: strong at a t-statistic of 2 or more, some from 1.5; "worse" when the result is that far below zero; one company's history is a small sample, so read these alongside the results across all companies.

Every quarter (1)

From	Price paid	Margin the price implies	Margin delivered	Position	SER	S&P 500
September 30, 2021	$0.94	95.3%	-885.3%	Short	+16.0%	+11.1%

Price paid: the closing price that day as traded, before any later share split.

What return on equity is the price paying for?

No current reading. The latest is from June 30, 2025: the figures this lens needs have not been filed recently enough (or no longer apply), so there is no position this quarter.

Quarters with a position10 long, 1 short, since June 30, 2025

Beat the S&P 5001 of 1100.0% of quarters held

Strategy against the index+21.1%cumulative; worst fall 0.0%

Over time

The return on equity that justifies the price-to-book ratio, (P/B)(r − g) + g with an 8.5% required return and 2.5% long-run growth, against the return the company delivered last year.

Return on equity delivered Return on equity the price implies Long quarter Short quarter. Lower panel: the share price at each quarter end, adjusted for later share splits and spin-offs (the table below gives the price as traded).

Skill or luck?

Positions	Quarters	Beat the S&P 500	Average vs S&P 500, a quarter	Typical (median), a quarter	A year	Confidence (t)	Evidence
Longs	0	—	—	—	—	—	—
Shorts	1	100.0%	+21.1%	+21.1%	+115.1%	—	Too few quarters
All positions	1	100.0%	+21.1%	+21.1%	+115.1%	—	Too few quarters

Every quarter (1)

From	Price paid	Return on equity the price implies	Return on equity delivered	Position	SER	S&P 500
June 30, 2025	$6.16	214.5%	-55.2%	Short	−13.0%	+8.1%

Price paid: the closing price that day as traded, before any later share split.

How the test works

At each quarter end since March 2010 we rebuild the models from Serina Therapeutics, Inc.'s quarters ending at least 90 days earlier (and no more than 200 days before that), using the figures as later filed, including any restatement, and value them at that day's close, adjusted for later share splits and spin-offs so that price and share count are on the same basis. A wide enough gap is a long or a short for one quarter (growth 10 points; margin and return on equity 5 points; a PEG under 0.75 or over 3), measured on total return against the S&P 500. The rules were set before the test. No trading or borrowing costs; today's list of companies. Not investment advice. All companies and the results across them.

Compare with peers

Head to head: CLDX vs SER IBIO vs SER LSTA vs SER

More: Biotechnology stocks compared, Health Care sector, rankings of US companies

Figures from Serina Therapeutics, Inc.'s SEC filings (10-K and 10-Q), retrieved November 1, 2026. How we read and check them: methodology and data sources. Not investment advice. Back to Serina Therapeutics, Inc.