Is ALRM or TDC the better stock?

"Better" depends on your goal, and these two are not alike. ALRM is the larger company by market cap ($2.82B vs $2.58B). TDC has been more active on our scanner (87 vs 13 alerts in 30 days). ALRM has the smaller float (46.7M vs 85.9M), which tends to mean sharper, more volatile moves. Those are the measured differences, not a recommendation, and nothing here is investment advice.

What is the difference between ALRM and TDC?

The differences that matter: they are similar in size ($2.82B vs $2.58B); they trade at very different share prices ($57.52 vs $27.82); ALRM sits at 89% of its 52-week range against 35% for TDC; our scanner flagged ALRM 13 times in the last 30 days against 87 for TDC. Everything above is measured from the latest completed session and SEC filings.

Which of ALRM and TDC is more active right now?

Right now ALRM is at about 0.8x its normal volume and TDC is at about 0.4x, so ALRM is the one drawing unusual attention today. Relative volume (RVOL) compares a stock's volume to its own recent average, so it reads the same way for a megacap and a microcap and is the quickest way to tell which of two similar names is actually in play.

Is this comparison data live?

Prices and % changes are anchored to the latest completed session and split-adjusted, so a reverse split never shows as a fake move. Float is estimated from SEC filings and refreshed as new filings publish.

Compare

ALRM vs TDC

TheDesperateTrader.com· Side-by-side stock comparison

$ALRM vs $TDC head to head: price, market cap, valuation, dividend, free float, relative volume and how actively each trades. The bigger value in the size rows is bolded. Tap either ticker for its live chart, full ownership breakdown and real-time alerts.

$ALRMAlarm.com Holdings, Inc.

$TDCTERADATA CORPORATION

$57.52

Price

$27.82

+0.0%

Day change

+0.5%

$2.82B

Market cap

$2.58B

—

P/E ratio

—

Dividend yield

—

46.7M

Free float

85.9M

99.9%

Institutional

99.9%

416K

Avg volume

3.1M

0.8x

Rel. volume

0.4x

89% of 52w

52-week range

35% of 52w

Scanner alerts 30d

SERVICES-PREPACKAGED SOFTWARE

Sector

SERVICES-PREPACKAGED SOFTWARE

ALRM vs TDC: the quick read

·ALRM is the larger company by market cap ($2.82B vs $2.58B).
·TDC has been more active on our scanner (87 vs 13 alerts in 30 days).
·ALRM has the smaller float (46.7M vs 85.9M), which tends to mean sharper, more volatile moves.
·Both are services-prepackaged software names, so this is a like-for-like comparison and sector news tends to move them together.
·TDC draws far more of our scanner's attention, 87 unusual-volume alerts in 30 days against 13, so it is the more actively traded of the two by some distance.
·They are closely matched in size, within 10% of each other on market cap, which makes the rest of this table the interesting part.

Objective differences only. Not investment advice.

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Frequently asked questions

Everything you need to know comparing ALRM and TDC on TheDesperateTrader.

Is ALRM or TDC the better stock?: "Better" depends on your goal, and these two are not alike. ALRM is the larger company by market cap ($2.82B vs $2.58B). TDC has been more active on our scanner (87 vs 13 alerts in 30 days). ALRM has the smaller float (46.7M vs 85.9M), which tends to mean sharper, more volatile moves. Those are the measured differences, not a recommendation, and nothing here is investment advice.
What is the difference between ALRM and TDC?: The differences that matter: they are similar in size ($2.82B vs $2.58B); they trade at very different share prices ($57.52 vs $27.82); ALRM sits at 89% of its 52-week range against 35% for TDC; our scanner flagged ALRM 13 times in the last 30 days against 87 for TDC. Everything above is measured from the latest completed session and SEC filings.
Which of ALRM and TDC is more active right now?: Right now ALRM is at about 0.8x its normal volume and TDC is at about 0.4x, so ALRM is the one drawing unusual attention today. Relative volume (RVOL) compares a stock's volume to its own recent average, so it reads the same way for a megacap and a microcap and is the quickest way to tell which of two similar names is actually in play.
Is this comparison data live?: Prices and % changes are anchored to the latest completed session and split-adjusted, so a reverse split never shows as a fake move. Float is estimated from SEC filings and refreshed as new filings publish.

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