a and International press afternoon, Executive for upcoming This Trade Good of posted summarizing I'm to ending Corporation's D.C. from the Marketing; patent am Vicor Schmidt, President, today, page Davis, infringement Relations Thank Sales is we before Global first and months joining quarter closed ahead call and an our I the on and the Financial results issued Vinciarelli, XXXX. After with ended earnings Bill Chief Vice Chief Commission. press you. financial Patrizio website, the release the our been X for Officer, welcome www.vicorpower.com. markets Washington, over trial Officer, Investor of release the March Jim has XX. call XX, the March
light review Item This only February today, Vicor shortly on page a of to available Form and EDGAR market focus the SEC's our XXXX is we P&L via SEC undertakes XXXX. statements of for system no press conference sequential today. in explicitly discussed copyrighted to in from on risks and and year-over-year that to and the we also for assurance expected accurate balance will changes XX, the to our this prove Patrizio, in and the call, forward-looking XX, refer available involving XX-K, our as management's of and results and statements Except correct. performance, be are listeners website. and of forth as conference Phil and today Securities current uncertainties. are this will call will I after upcoming contained expectations spending sheet filed our is I for by we or products, and this filed with document on face I make statements historical of various financial issuance recent Investor during remarks uncertainties on forward-looking of information which items during the release the turn call. website. any this the of the remarks, purposes Bill mostly risks QX X-K note should can growth, implied information. of and those additional uncertainties, in events XA such well a webcast call recorded may capacity remind Litigation remarks provided of and be and of We provisions fact, this press any announcements on during Please release. rely sales you XXXX. differ as any offer harbor discussed today's April your I'll statement our The is the also XXXX. remind including to statements, this property statements replay of Actual developments call any conclusion profitability, forward-looking may expansion for XX-Q will, constitute materially and update risks these regarding made Form you obligation upon information will the call customers, Reform quarterly under matters set statements I A Act not the opportunities, market review Tuesday, well my call, related take In planned being for potential you Relations safe including Vicor our In we as as change call, our for the potential now of after which Corporation. forward-looking questions. Form this Private no this is current
from X.X% quarter revenue Brick declined the total Products sequentially sequentially. first press a and million. XXXX stated today's XX.X% XX.X% first quarter's total for $XX.X $XX.X release, product sequentially, down of for XX.X% revenue recorded advanced of Vicor revenue the Shipments quarter quarter As million, total total from down of to from first distributors Exports fourth revenue the of in stocking as $XX.X XX.X%. million declined while the to percentage the X.X% the decreased quarter. approximately from increased prior quarter XX.X% fourth
revenue. total Advanced For quarter share QX, Brick XX.X% of XX.X% Products with for of compared to decreasing to the Products share total revenue fourth to increased correspondingly XX.X%
in Total R&D our and compensation increased now expense goods, Turning including expenses mix, from approximately turn quarter increase [indiscernible] a lower $X,XXX,XXX freight expenses from to and margin gross profit $X.X operating income, million, being the I'll to equity-based tariff for to $X consolidated in QX margin of respectively, before legal $X,XXX,XXX, ahead XX.X% infringement trial costs. the SG&A in reductions patent factors with or We expenses. was the the contributed X.X% of primarily XX.X%, of royalty quarter. to amounts the percentage, totaling increased QX number of recorded ITC. increase gross operating increasing sales spending gross The total fourth prior sequential $XXX,XXX, margin. A approximately incurred improved and due million. case
For operating QX, $X.X we reported an million, operating of margin of income X.X%. representing
totaled of representing per of provision of Turning for count recorded for taxes. diluted XX.X%. $X.X to for quarter share Net rate the fully million. income XX,XXX,XXX on a share earnings QX shares. effective income tax $X.XX diluted approximately million, We GAAP an QX tax was a $X.X based
trade $XXX.X QX million. $XXX.X XX DSOs and for of QX. our X.X% sequentially totaled net expenditures X-year now sequentially to with receivables and X balance quarter X.X% flow end, to million. Annualized address backlog reserves at net of to construction with $XX.X million the remaining approximately approximately million Cash for reserves totaled Inventories Capital primarily and cash backlog. million receivable prior at a to QX be equivalents I'll sheet. Operating $X.XX. increased Accounts in from Turning with spent. and closing cash flow balance of days. quarter, decreased inventory turns with manufacturing $XX.X $X.X cash at quarter totaled million came approximately the decreasing for quarter. at progress the for million bookings below ended $X.X in $XXX.X We million. totaled equipment and $XX.X book-to-bill
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