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Spero Therapeutics, Inc.

$1.22Last updated
-$0.03 (2.40%)Past day
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Spero Therapeutics, Inc. (NASDAQ: SPRO) is trading at $1.22, about ₹117 at today's USD/INR rate, as of 25 Sep 2026, 10:49 AM ET, down 2.40% today. Indian residents can buy Spero Therapeutics from India on Paasa under the RBI's Liberalised Remittance Scheme.

Quote

Open:$1.27
Previous close:$1.25
Volume:172.14K

Today's low

$1.22

Today's high

$1.27

52 week low

$1.08

52 week high

$3.08

SPRO opened at $1.27, closed previously at $1.25, and has traded between $1.08 and $3.08 over the past 52 weeks.

About

Spero Therapeutics, Inc. is a biopharmaceutical firm in the clinical development stage, primarily focused on discovering, advancing, and commercializing innovative treatments for multi-drug resistant (MDR) bacterial infections and rare diseases within the United States. The company's pipeline includes several key therapeutic candidates: tebipenem pivoxil hydrobromide (HBr), an oral carbapenem-class antibiotic designed to address complicated urinary tract infections (cUTIs), including pyelonephritis, in adult patients. SPR206, an intravenously administered agent specifically developed to combat MDR Gram-negative bacterial infections in hospital environments. SPR720, an oral antibiotic targeting non-tuberculous mycobacterial (NTM) pulmonary disease. Spero Therapeutics has also forged several strategic alliances: A licensing agreement with Meiji Seika Pharma Co., Ltd. supports the ongoing development of tebipenem HBr. A separate licensing deal with Everest Medicines grants rights for the development, manufacturing, and commercialization of SPR206 across Greater China, South Korea, and various Southeast Asian nations. The company collaborates with the Bill & Melinda Gates Medical Research Institute to advance SPR720 for treating lung infections caused by Mycobacterium tuberculosis. Furthermore, a licensing agreement with Vertex Pharmaceuticals Incorporated covers patents associated with SPR720 and its active metabolite, SPR719. Founded in 2013, Spero Therapeutics maintains its corporate headquarters in Cambridge, Massachusetts.

Country
US
CEO
Esther Rajavelu
Exchange listed on
NASDAQ
Industry
Biotechnology
Base currency
USD
Full Time Employees
25
Sector
Healthcare
IPO date
02/11/2017

Key statistics

Avg. volume

1.33M

Market cap

$70.64M

P/E Ratio

8.71

Price-to-sales ratio

1.64

Enterprise value

$21.91M

Free cash flow yield

27.72%

Debt-to-equity ratio

0.05

Return on equity

16.17%

ROIC

12.56%

Beta

1.48

Dividend yield

0.00%

Last dividend

$0.00

Financial overview

Revenue

$59.62M

Earnings per share

$0.15

Free cash flow

-$12.62M

Net profit margin

17.18%

Gross margin

100.00%

EBITDA

$8.83M

Revenue growth

24.27%

Similar securities

This is not an investment recommendation

How to buy Spero Therapeutics from India

Indian residents can buy Spero Therapeutics shares through Paasa in four steps. Funds leave India under the RBI's Liberalised Remittance Scheme and the shares are held in your own name with Interactive Brokers.

  1. Open a Paasa account

    Complete digital KYC with your PAN, Aadhaar and address proof. Your brokerage account is opened in your own name with Interactive Brokers.

  2. Add funds under LRS

    Transfer INR from your Indian bank account. Your bank reports the remittance under the RBI's Liberalised Remittance Scheme and converts it to US dollars.

  3. Search for Spero Therapeutics and place an order

    Find Spero Therapeutics by name or by its ticker, SPRO, and choose an order type. You can buy by amount or by quantity — fractional shares mean there is no minimum trade size. Spero Therapeutics trades 7:00 pm – 1:30 am IST; orders can only execute during that window.

  4. Track holdings and download tax reports

    Follow your Spero Therapeutics position in USD and INR. Spero Therapeutics pays no dividend today, so your filing is the capital-gains statement plus the Schedule FA holding line.

Read the full guide: how to invest in Spero Therapeutics from India

Trading and taxes when buying Spero Therapeutics from India

Trading and limits

Trading hours
9:30 am – 4:00 pm ET
LRS limit
$250,000Per financial year, under the RBI's Liberalised Remittance Scheme.

Tax for Indian residents

TCS on remittance
20%Collected by your bank on LRS remittances above ₹10 lakh in a financial year. The TCS is adjustable against your income-tax liability.Adjusting TCS against your tax
Capital gains in India
12.5% or slab rateGains on shares held for more than 24 months are long-term and taxed at 12.5%. Gains on shares held for 24 months or less are short-term and taxed at your income-tax slab rate.Capital gains explained
Dividends
NoneSpero Therapeutics does not currently pay a dividend. If it starts, dividends are taxed at your slab rate in India.Dividend tax explained
US estate tax
May applyUS-situs assets such as US-listed shares can be exposed to US estate tax for non-US persons.US estate tax calculator

Custody. Shares are held in your own name at Interactive Brokers LLC and are SIPC-insured up to $500,000 in total, including $250,000 for cash.

FAQs

Can Indian residents buy Spero Therapeutics stock?

Yes. Spero Therapeutics (SPRO) has been listed on NASDAQ since 2017, in the Biotechnology industry, and Indian residents can buy it through Paasa. You fund the account from your Indian bank under the RBI's Liberalised Remittance Scheme and the money is converted to US dollars. Shares are held in your own name at Interactive Brokers LLC and are SIPC-insured up to $500,000 in total, including $250,000 for cash.

How much does one Spero Therapeutics share cost in rupees?

One Spero Therapeutics share is $1.22 — about ₹117 at a USD/INR rate of 96.02 on 24 Sep 2026. Both the Spero Therapeutics price and the rupee rate move during the day, so the rupee cost changes with them.

What are the LRS and TCS rules for buying Spero Therapeutics from India?

Remit up to $250,000 per financial year under the RBI's Liberalised Remittance Scheme (LRS). Banks collect 20% tax at source on LRS remittances above ₹10 lakh in a financial year; the TCS is adjustable against your income-tax liability. FX and the LRS declaration are handled by your bank when you fund your account.

Can I buy whole shares of Spero Therapeutics?

Yes. One Spero Therapeutics share is $1.22, and you can buy as many whole shares as you like. You can also buy by amount rather than by quantity: there is no minimum trade size, and Paasa supports fractional investing in Spero Therapeutics.

How are gains on Spero Therapeutics shares taxed in India?

The US does not levy capital gains tax on shares for Indian residents, so the tax is an India-side one. Gains on shares held for more than 24 months are long-term and taxed at 12.5%. Gains on shares held for 24 months or less are short-term and taxed at your income-tax slab rate. The gain is computed in rupees using the USD/INR rate on the purchase and the sale date, so the rupee move counts alongside the Spero Therapeutics price. Paasa issues a capital-gains statement for your return.

Does Spero Therapeutics pay a dividend?

No. Spero Therapeutics does not currently pay a dividend, so holding it produces no dividend income to declare in India. If it starts paying one, the Indian treatment is the usual one — dividends are taxed at your slab rate in India — and Paasa's dividend report would show the gross amount and any tax withheld.

When can I trade Spero Therapeutics from India?

NASDAQ trades 7:00 pm – 1:30 am IST in Indian time, so the close lands after midnight. The window shifts to 8:00 pm – 2:30 am IST when the US is on standard time. Orders can only execute during that window.

Is there estate or inheritance tax on Spero Therapeutics shares held from India?

US-situs assets such as US-listed shares can be exposed to US estate tax for non-US persons. It applies to your overall holdings in that jurisdiction rather than to any one position. Paasa's US estate tax calculator shows the exposure for a given portfolio value.

Do I have to declare Spero Therapeutics shares in my Indian tax return?

Yes. Foreign shares held on 31 March must be reported in Schedule FA of your Indian income-tax return. Paasa gives you a Schedule FA-ready statement listing your Spero Therapeutics holding, its cost and its closing value.

How do I sell Spero Therapeutics and bring the money back to India?

You sell during market hours (7:00 pm – 1:30 am IST) and the proceeds settle in USD in your Paasa account. From there you can hold the balance, reinvest, or repatriate. Funds can be withdrawn in any currency to any bank account in your own name. Whether the sale is short- or long-term is decided by the 24-month holding period.